Home / 141,616-212,409.28-88,869.12

Finding the Fourth Proportional to 141,616, 212,409.28 and 88,869.12

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Solution

The fourth proportional to 141,616, 212,409.28 and 88,869.12 is: 133,294.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,616 : 212,409.28 = 88,869.12 : x
  2. Step 2: Convert to fraction form
    141,616/212,409.28 = 88,869.12/x
  3. Step 3: Cross multiply
    141,616x = 212,409.28 × 88,869.12
  4. Step 4: Simplify right side
    141,616x = 18,876,625,793.43
  5. Step 5: Solve for x
    x = 18,876,625,793.43/141,616
  6. Step 6: Final answer
    x = 133,294.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.