Home / 99,248.20-148,872.30-43,115.20

Finding the Fourth Proportional to 99,248.20, 148,872.30 and 43,115.20

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Solution

The fourth proportional to 99,248.20, 148,872.30 and 43,115.20 is: 64,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,248.20 : 148,872.30 = 43,115.20 : x
  2. Step 2: Convert to fraction form
    99,248.20/148,872.30 = 43,115.20/x
  3. Step 3: Cross multiply
    99,248.20x = 148,872.30 × 43,115.20
  4. Step 4: Simplify right side
    99,248.20x = 6,418,658,988.96
  5. Step 5: Solve for x
    x = 6,418,658,988.96/99,248.20
  6. Step 6: Final answer
    x = 64,672.80

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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.