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Finding the Fourth Proportional to 155,843.97, 215,064.74 and 88,775.97

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Solution

The fourth proportional to 155,843.97, 215,064.74 and 88,775.97 is: 122,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,843.97 : 215,064.74 = 88,775.97 : x
  2. Step 2: Convert to fraction form
    155,843.97/215,064.74 = 88,775.97/x
  3. Step 3: Cross multiply
    155,843.97x = 215,064.74 × 88,775.97
  4. Step 4: Simplify right side
    155,843.97x = 19,092,580,906.30
  5. Step 5: Solve for x
    x = 19,092,580,906.30/155,843.97
  6. Step 6: Final answer
    x = 122,510.87

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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.