Home / 98,145.18-147,217.82-31,585.30

Finding the Fourth Proportional to 98,145.18, 147,217.82 and 31,585.30

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Solution

The fourth proportional to 98,145.18, 147,217.82 and 31,585.30 is: 47,377.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,145.18 : 147,217.82 = 31,585.30 : x
  2. Step 2: Convert to fraction form
    98,145.18/147,217.82 = 31,585.30/x
  3. Step 3: Cross multiply
    98,145.18x = 147,217.82 × 31,585.30
  4. Step 4: Simplify right side
    98,145.18x = 4,649,919,010.05
  5. Step 5: Solve for x
    x = 4,649,919,010.05/98,145.18
  6. Step 6: Final answer
    x = 47,377.97

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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.