Home / 112,495.76-155,244.17-61,508.53

Finding the Fourth Proportional to 112,495.76, 155,244.17 and 61,508.53

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Solution

The fourth proportional to 112,495.76, 155,244.17 and 61,508.53 is: 84,881.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,495.76 : 155,244.17 = 61,508.53 : x
  2. Step 2: Convert to fraction form
    112,495.76/155,244.17 = 61,508.53/x
  3. Step 3: Cross multiply
    112,495.76x = 155,244.17 × 61,508.53
  4. Step 4: Simplify right side
    112,495.76x = 9,548,840,689.61
  5. Step 5: Solve for x
    x = 9,548,840,689.61/112,495.76
  6. Step 6: Final answer
    x = 84,881.78

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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.