Home / 133,203.12-183,817.20-72,774

Finding the Fourth Proportional to 133,203.12, 183,817.20 and 72,774

Calculator

Solution

The fourth proportional to 133,203.12, 183,817.20 and 72,774 is: 100,426.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,203.12 : 183,817.20 = 72,774 : x
  2. Step 2: Convert to fraction form
    133,203.12/183,817.20 = 72,774/x
  3. Step 3: Cross multiply
    133,203.12x = 183,817.20 × 72,774
  4. Step 4: Simplify right side
    133,203.12x = 13,377,112,912.80
  5. Step 5: Solve for x
    x = 13,377,112,912.80/133,203.12
  6. Step 6: Final answer
    x = 100,426.42

Related Problems

Find fourth proportional to 66,601.56, 91,908.60 and 36,387
Half scale
Find fourth proportional to 266,406.24, 367,634.40 and 145,548
Double scale
Find fourth proportional to 133,204.12, 183,818.58 and 72,775
Similar ratio
Find fourth proportional to 199,804.68, 275,725.80 and 109,161
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.