Home / 99,137.46-148,714.68-31,679.22

Finding the Fourth Proportional to 99,137.46, 148,714.68 and 31,679.22

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Solution

The fourth proportional to 99,137.46, 148,714.68 and 31,679.22 is: 47,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,137.46 : 148,714.68 = 31,679.22 : x
  2. Step 2: Convert to fraction form
    99,137.46/148,714.68 = 31,679.22/x
  3. Step 3: Cross multiply
    99,137.46x = 148,714.68 × 31,679.22
  4. Step 4: Simplify right side
    99,137.46x = 4,711,165,064.95
  5. Step 5: Solve for x
    x = 4,711,165,064.95/99,137.46
  6. Step 6: Final answer
    x = 47,521.54

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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.