Home / 99,902.28-149,853.42-40,742.58

Finding the Fourth Proportional to 99,902.28, 149,853.42 and 40,742.58

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Solution

The fourth proportional to 99,902.28, 149,853.42 and 40,742.58 is: 61,113.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,902.28 : 149,853.42 = 40,742.58 : x
  2. Step 2: Convert to fraction form
    99,902.28/149,853.42 = 40,742.58/x
  3. Step 3: Cross multiply
    99,902.28x = 149,853.42 × 40,742.58
  4. Step 4: Simplify right side
    99,902.28x = 6,105,414,952.62
  5. Step 5: Solve for x
    x = 6,105,414,952.62/99,902.28
  6. Step 6: Final answer
    x = 61,113.87

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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.