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Finding the Fourth Proportional to 111,024.56, 153,195.92 and 63,278.80

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Solution

The fourth proportional to 111,024.56, 153,195.92 and 63,278.80 is: 87,314.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,024.56 : 153,195.92 = 63,278.80 : x
  2. Step 2: Convert to fraction form
    111,024.56/153,195.92 = 63,278.80/x
  3. Step 3: Cross multiply
    111,024.56x = 153,195.92 × 63,278.80
  4. Step 4: Simplify right side
    111,024.56x = 9,694,053,982.50
  5. Step 5: Solve for x
    x = 9,694,053,982.50/111,024.56
  6. Step 6: Final answer
    x = 87,314.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.