Home / 99,891.12-149,836.14-40,726.56

Finding the Fourth Proportional to 99,891.12, 149,836.14 and 40,726.56

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Solution

The fourth proportional to 99,891.12, 149,836.14 and 40,726.56 is: 61,089.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,891.12 : 149,836.14 = 40,726.56 : x
  2. Step 2: Convert to fraction form
    99,891.12/149,836.14 = 40,726.56/x
  3. Step 3: Cross multiply
    99,891.12x = 149,836.14 × 40,726.56
  4. Step 4: Simplify right side
    99,891.12x = 6,102,310,545.88
  5. Step 5: Solve for x
    x = 6,102,310,545.88/99,891.12
  6. Step 6: Final answer
    x = 61,089.62

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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.