Home / 102,672.80-143,392-102,672.80

Finding the Fourth Proportional to 102,672.80, 143,392 and 102,672.80

Calculator

Solution

The fourth proportional to 102,672.80, 143,392 and 102,672.80 is: 143,392

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,672.80 : 143,392 = 102,672.80 : x
  2. Step 2: Convert to fraction form
    102,672.80/143,392 = 102,672.80/x
  3. Step 3: Cross multiply
    102,672.80x = 143,392 × 102,672.80
  4. Step 4: Simplify right side
    102,672.80x = 14,722,458,137.60
  5. Step 5: Solve for x
    x = 14,722,458,137.60/102,672.80
  6. Step 6: Final answer
    x = 143,392

Related Problems

Find fourth proportional to 51,336.40, 71,696 and 51,336.40
Half scale
Find fourth proportional to 205,345.60, 286,784 and 205,345.60
Double scale
Find fourth proportional to 102,673.80, 143,393.40 and 102,673.80
Similar ratio
Find fourth proportional to 154,009.20, 215,088 and 154,009.20
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.