Home / 99,721.28-149,316.96-60,224.96

Finding the Fourth Proportional to 99,721.28, 149,316.96 and 60,224.96

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Solution

The fourth proportional to 99,721.28, 149,316.96 and 60,224.96 is: 90,177.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,721.28 : 149,316.96 = 60,224.96 : x
  2. Step 2: Convert to fraction form
    99,721.28/149,316.96 = 60,224.96/x
  3. Step 3: Cross multiply
    99,721.28x = 149,316.96 × 60,224.96
  4. Step 4: Simplify right side
    99,721.28x = 8,992,607,943.32
  5. Step 5: Solve for x
    x = 8,992,607,943.32/99,721.28
  6. Step 6: Final answer
    x = 90,177.42

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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.