Home / 102,553.16-141,453.45-89,100.68

Finding the Fourth Proportional to 102,553.16, 141,453.45 and 89,100.68

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Solution

The fourth proportional to 102,553.16, 141,453.45 and 89,100.68 is: 122,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,553.16 : 141,453.45 = 89,100.68 : x
  2. Step 2: Convert to fraction form
    102,553.16/141,453.45 = 89,100.68/x
  3. Step 3: Cross multiply
    102,553.16x = 141,453.45 × 89,100.68
  4. Step 4: Simplify right side
    102,553.16x = 12,603,597,876.08
  5. Step 5: Solve for x
    x = 12,603,597,876.08/102,553.16
  6. Step 6: Final answer
    x = 122,898.20

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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.