Home / 98,269.38-147,428.91-42,081.30

Finding the Fourth Proportional to 98,269.38, 147,428.91 and 42,081.30

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Solution

The fourth proportional to 98,269.38, 147,428.91 and 42,081.30 is: 63,132.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,269.38 : 147,428.91 = 42,081.30 : x
  2. Step 2: Convert to fraction form
    98,269.38/147,428.91 = 42,081.30/x
  3. Step 3: Cross multiply
    98,269.38x = 147,428.91 × 42,081.30
  4. Step 4: Simplify right side
    98,269.38x = 6,204,000,190.38
  5. Step 5: Solve for x
    x = 6,204,000,190.38/98,269.38
  6. Step 6: Final answer
    x = 63,132.59

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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.