Home / 98,211.60-147,390.30-39,089.70

Finding the Fourth Proportional to 98,211.60, 147,390.30 and 39,089.70

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Solution

The fourth proportional to 98,211.60, 147,390.30 and 39,089.70 is: 58,663.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,211.60 : 147,390.30 = 39,089.70 : x
  2. Step 2: Convert to fraction form
    98,211.60/147,390.30 = 39,089.70/x
  3. Step 3: Cross multiply
    98,211.60x = 147,390.30 × 39,089.70
  4. Step 4: Simplify right side
    98,211.60x = 5,761,442,609.91
  5. Step 5: Solve for x
    x = 5,761,442,609.91/98,211.60
  6. Step 6: Final answer
    x = 58,663.57

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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.