Home / 133,729.47-200,334.20-74,385.23

Finding the Fourth Proportional to 133,729.47, 200,334.20 and 74,385.23

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Solution

The fourth proportional to 133,729.47, 200,334.20 and 74,385.23 is: 111,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,729.47 : 200,334.20 = 74,385.23 : x
  2. Step 2: Convert to fraction form
    133,729.47/200,334.20 = 74,385.23/x
  3. Step 3: Cross multiply
    133,729.47x = 200,334.20 × 74,385.23
  4. Step 4: Simplify right side
    133,729.47x = 14,901,904,170.27
  5. Step 5: Solve for x
    x = 14,901,904,170.27/133,729.47
  6. Step 6: Final answer
    x = 111,433.21

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1.5x scale

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.