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Finding the Fourth Proportional to 159,860.78, 220,607.89 and 88,240.82

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Solution

The fourth proportional to 159,860.78, 220,607.89 and 88,240.82 is: 121,772.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,860.78 : 220,607.89 = 88,240.82 : x
  2. Step 2: Convert to fraction form
    159,860.78/220,607.89 = 88,240.82/x
  3. Step 3: Cross multiply
    159,860.78x = 220,607.89 × 88,240.82
  4. Step 4: Simplify right side
    159,860.78x = 19,466,620,781.15
  5. Step 5: Solve for x
    x = 19,466,620,781.15/159,860.78
  6. Step 6: Final answer
    x = 121,772.34

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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.