Home / 98,805.30-148,291.19-42,687.95

Finding the Fourth Proportional to 98,805.30, 148,291.19 and 42,687.95

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Solution

The fourth proportional to 98,805.30, 148,291.19 and 42,687.95 is: 64,067.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,805.30 : 148,291.19 = 42,687.95 : x
  2. Step 2: Convert to fraction form
    98,805.30/148,291.19 = 42,687.95/x
  3. Step 3: Cross multiply
    98,805.30x = 148,291.19 × 42,687.95
  4. Step 4: Simplify right side
    98,805.30x = 6,330,245,949.26
  5. Step 5: Solve for x
    x = 6,330,245,949.26/98,805.30
  6. Step 6: Final answer
    x = 64,067.88

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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.