Home / 100,538.38-150,807.44-25,658.53

Finding the Fourth Proportional to 100,538.38, 150,807.44 and 25,658.53

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Solution

The fourth proportional to 100,538.38, 150,807.44 and 25,658.53 is: 38,487.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,538.38 : 150,807.44 = 25,658.53 : x
  2. Step 2: Convert to fraction form
    100,538.38/150,807.44 = 25,658.53/x
  3. Step 3: Cross multiply
    100,538.38x = 150,807.44 × 25,658.53
  4. Step 4: Simplify right side
    100,538.38x = 3,869,496,341.13
  5. Step 5: Solve for x
    x = 3,869,496,341.13/100,538.38
  6. Step 6: Final answer
    x = 38,487.75

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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.