Home / 99,491.20-148,872.30-73,247.20

Finding the Fourth Proportional to 99,491.20, 148,872.30 and 73,247.20

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Solution

The fourth proportional to 99,491.20, 148,872.30 and 73,247.20 is: 109,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,491.20 : 148,872.30 = 73,247.20 : x
  2. Step 2: Convert to fraction form
    99,491.20/148,872.30 = 73,247.20/x
  3. Step 3: Cross multiply
    99,491.20x = 148,872.30 × 73,247.20
  4. Step 4: Simplify right side
    99,491.20x = 10,904,479,132.56
  5. Step 5: Solve for x
    x = 10,904,479,132.56/99,491.20
  6. Step 6: Final answer
    x = 109,602.45

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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.