Home / 99,565.30-148,915.95-89,110.90

Finding the Fourth Proportional to 99,565.30, 148,915.95 and 89,110.90

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Solution

The fourth proportional to 99,565.30, 148,915.95 and 89,110.90 is: 133,279.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,565.30 : 148,915.95 = 89,110.90 : x
  2. Step 2: Convert to fraction form
    99,565.30/148,915.95 = 89,110.90/x
  3. Step 3: Cross multiply
    99,565.30x = 148,915.95 × 89,110.90
  4. Step 4: Simplify right side
    99,565.30x = 13,270,034,328.86
  5. Step 5: Solve for x
    x = 13,270,034,328.86/99,565.30
  6. Step 6: Final answer
    x = 133,279.71

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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.