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Finding the Fourth Proportional to 134,115.15, 185,082.17 and 73,689.71

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Solution

The fourth proportional to 134,115.15, 185,082.17 and 73,689.71 is: 101,693.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,115.15 : 185,082.17 = 73,689.71 : x
  2. Step 2: Convert to fraction form
    134,115.15/185,082.17 = 73,689.71/x
  3. Step 3: Cross multiply
    134,115.15x = 185,082.17 × 73,689.71
  4. Step 4: Simplify right side
    134,115.15x = 13,638,650,139.61
  5. Step 5: Solve for x
    x = 13,638,650,139.61/134,115.15
  6. Step 6: Final answer
    x = 101,693.58

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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.