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Finding the Fourth Proportional to 157,745.88, 217,694.10 and 89,772.62

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Solution

The fourth proportional to 157,745.88, 217,694.10 and 89,772.62 is: 123,888.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,745.88 : 217,694.10 = 89,772.62 : x
  2. Step 2: Convert to fraction form
    157,745.88/217,694.10 = 89,772.62/x
  3. Step 3: Cross multiply
    157,745.88x = 217,694.10 × 89,772.62
  4. Step 4: Simplify right side
    157,745.88x = 19,542,969,715.54
  5. Step 5: Solve for x
    x = 19,542,969,715.54/157,745.88
  6. Step 6: Final answer
    x = 123,888.94

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1.5x scale

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.