Home / 99,720.28-149,315.46-60,223.96

Finding the Fourth Proportional to 99,720.28, 149,315.46 and 60,223.96

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Solution

The fourth proportional to 99,720.28, 149,315.46 and 60,223.96 is: 90,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,720.28 : 149,315.46 = 60,223.96 : x
  2. Step 2: Convert to fraction form
    99,720.28/149,315.46 = 60,223.96/x
  3. Step 3: Cross multiply
    99,720.28x = 149,315.46 × 60,223.96
  4. Step 4: Simplify right side
    99,720.28x = 8,992,368,290.42
  5. Step 5: Solve for x
    x = 8,992,368,290.42/99,720.28
  6. Step 6: Final answer
    x = 90,175.92

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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.