Home / 99,382.28-149,073.42-68,122.76

Finding the Fourth Proportional to 99,382.28, 149,073.42 and 68,122.76

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Solution

The fourth proportional to 99,382.28, 149,073.42 and 68,122.76 is: 102,184.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,382.28 : 149,073.42 = 68,122.76 : x
  2. Step 2: Convert to fraction form
    99,382.28/149,073.42 = 68,122.76/x
  3. Step 3: Cross multiply
    99,382.28x = 149,073.42 × 68,122.76
  4. Step 4: Simplify right side
    99,382.28x = 10,155,292,813.04
  5. Step 5: Solve for x
    x = 10,155,292,813.04/99,382.28
  6. Step 6: Final answer
    x = 102,184.14

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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.