Home / 98,687.28-148,046.45-42,543.35

Finding the Fourth Proportional to 98,687.28, 148,046.45 and 42,543.35

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Solution

The fourth proportional to 98,687.28, 148,046.45 and 42,543.35 is: 63,821.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,687.28 : 148,046.45 = 42,543.35 : x
  2. Step 2: Convert to fraction form
    98,687.28/148,046.45 = 42,543.35/x
  3. Step 3: Cross multiply
    98,687.28x = 148,046.45 × 42,543.35
  4. Step 4: Simplify right side
    98,687.28x = 6,298,391,938.61
  5. Step 5: Solve for x
    x = 6,298,391,938.61/98,687.28
  6. Step 6: Final answer
    x = 63,821.72

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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.