Home / 172,610.64-238,100.04-105,426

Finding the Fourth Proportional to 172,610.64, 238,100.04 and 105,426

Calculator

Solution

The fourth proportional to 172,610.64, 238,100.04 and 105,426 is: 145,425.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,610.64 : 238,100.04 = 105,426 : x
  2. Step 2: Convert to fraction form
    172,610.64/238,100.04 = 105,426/x
  3. Step 3: Cross multiply
    172,610.64x = 238,100.04 × 105,426
  4. Step 4: Simplify right side
    172,610.64x = 25,101,934,817.04
  5. Step 5: Solve for x
    x = 25,101,934,817.04/172,610.64
  6. Step 6: Final answer
    x = 145,425.19

Related Problems

Find fourth proportional to 86,305.32, 119,050.02 and 52,713
Half scale
Find fourth proportional to 345,221.28, 476,200.08 and 210,852
Double scale
Find fourth proportional to 172,611.64, 238,101.42 and 105,427
Similar ratio
Find fourth proportional to 258,915.96, 357,150.06 and 158,139
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.