Home / 100,488.12-150,732.36-75,213.96

Finding the Fourth Proportional to 100,488.12, 150,732.36 and 75,213.96

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Solution

The fourth proportional to 100,488.12, 150,732.36 and 75,213.96 is: 112,821.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,488.12 : 150,732.36 = 75,213.96 : x
  2. Step 2: Convert to fraction form
    100,488.12/150,732.36 = 75,213.96/x
  3. Step 3: Cross multiply
    100,488.12x = 150,732.36 × 75,213.96
  4. Step 4: Simplify right side
    100,488.12x = 11,337,177,695.75
  5. Step 5: Solve for x
    x = 11,337,177,695.75/100,488.12
  6. Step 6: Final answer
    x = 112,821.07

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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.