Home / 159,942.72-220,721.02-88,327.60

Finding the Fourth Proportional to 159,942.72, 220,721.02 and 88,327.60

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Solution

The fourth proportional to 159,942.72, 220,721.02 and 88,327.60 is: 121,892.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,942.72 : 220,721.02 = 88,327.60 : x
  2. Step 2: Convert to fraction form
    159,942.72/220,721.02 = 88,327.60/x
  3. Step 3: Cross multiply
    159,942.72x = 220,721.02 × 88,327.60
  4. Step 4: Simplify right side
    159,942.72x = 19,495,757,966.15
  5. Step 5: Solve for x
    x = 19,495,757,966.15/159,942.72
  6. Step 6: Final answer
    x = 121,892.12

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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.