Home / 99,287.47-149,005.03-40,123.65

Finding the Fourth Proportional to 99,287.47, 149,005.03 and 40,123.65

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Solution

The fourth proportional to 99,287.47, 149,005.03 and 40,123.65 is: 60,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,287.47 : 149,005.03 = 40,123.65 : x
  2. Step 2: Convert to fraction form
    99,287.47/149,005.03 = 40,123.65/x
  3. Step 3: Cross multiply
    99,287.47x = 149,005.03 × 40,123.65
  4. Step 4: Simplify right side
    99,287.47x = 5,978,624,726.32
  5. Step 5: Solve for x
    x = 5,978,624,726.32/99,287.47
  6. Step 6: Final answer
    x = 60,215.30

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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.