Home / 99,665.13-149,497.70-40,505.42

Finding the Fourth Proportional to 99,665.13, 149,497.70 and 40,505.42

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Solution

The fourth proportional to 99,665.13, 149,497.70 and 40,505.42 is: 60,758.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,665.13 : 149,497.70 = 40,505.42 : x
  2. Step 2: Convert to fraction form
    99,665.13/149,497.70 = 40,505.42/x
  3. Step 3: Cross multiply
    99,665.13x = 149,497.70 × 40,505.42
  4. Step 4: Simplify right side
    99,665.13x = 6,055,466,177.52
  5. Step 5: Solve for x
    x = 6,055,466,177.52/99,665.13
  6. Step 6: Final answer
    x = 60,758.12

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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.