Home / 99,910.17-137,874.40-54,587.18

Finding the Fourth Proportional to 99,910.17, 137,874.40 and 54,587.18

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Solution

The fourth proportional to 99,910.17, 137,874.40 and 54,587.18 is: 75,329.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,910.17 : 137,874.40 = 54,587.18 : x
  2. Step 2: Convert to fraction form
    99,910.17/137,874.40 = 54,587.18/x
  3. Step 3: Cross multiply
    99,910.17x = 137,874.40 × 54,587.18
  4. Step 4: Simplify right side
    99,910.17x = 7,526,174,000.82
  5. Step 5: Solve for x
    x = 7,526,174,000.82/99,910.17
  6. Step 6: Final answer
    x = 75,329.41

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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.