Home / 156,129.61-234,194.05-120,642.52

Finding the Fourth Proportional to 156,129.61, 234,194.05 and 120,642.52

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Solution

The fourth proportional to 156,129.61, 234,194.05 and 120,642.52 is: 180,963.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,129.61 : 234,194.05 = 120,642.52 : x
  2. Step 2: Convert to fraction form
    156,129.61/234,194.05 = 120,642.52/x
  3. Step 3: Cross multiply
    156,129.61x = 234,194.05 × 120,642.52
  4. Step 4: Simplify right side
    156,129.61x = 28,253,760,361.01
  5. Step 5: Solve for x
    x = 28,253,760,361.01/156,129.61
  6. Step 6: Final answer
    x = 180,963.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.