Home / 134,515.72-185,640.12-74,086.35

Finding the Fourth Proportional to 134,515.72, 185,640.12 and 74,086.35

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Solution

The fourth proportional to 134,515.72, 185,640.12 and 74,086.35 is: 102,243.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,515.72 : 185,640.12 = 74,086.35 : x
  2. Step 2: Convert to fraction form
    134,515.72/185,640.12 = 74,086.35/x
  3. Step 3: Cross multiply
    134,515.72x = 185,640.12 × 74,086.35
  4. Step 4: Simplify right side
    134,515.72x = 13,753,399,553.68
  5. Step 5: Solve for x
    x = 13,753,399,553.68/134,515.72
  6. Step 6: Final answer
    x = 102,243.81

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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.