Home / 100,551.11-138,770.17-57,522.06

Finding the Fourth Proportional to 100,551.11, 138,770.17 and 57,522.06

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Solution

The fourth proportional to 100,551.11, 138,770.17 and 57,522.06 is: 79,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,551.11 : 138,770.17 = 57,522.06 : x
  2. Step 2: Convert to fraction form
    100,551.11/138,770.17 = 57,522.06/x
  3. Step 3: Cross multiply
    100,551.11x = 138,770.17 × 57,522.06
  4. Step 4: Simplify right side
    100,551.11x = 7,982,345,063.49
  5. Step 5: Solve for x
    x = 7,982,345,063.49/100,551.11
  6. Step 6: Final answer
    x = 79,385.95

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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.