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Finding the Fourth Proportional to 159,885.36, 220,640.56 and 88,265.48

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Solution

The fourth proportional to 159,885.36, 220,640.56 and 88,265.48 is: 121,805.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,885.36 : 220,640.56 = 88,265.48 : x
  2. Step 2: Convert to fraction form
    159,885.36/220,640.56 = 88,265.48/x
  3. Step 3: Cross multiply
    159,885.36x = 220,640.56 × 88,265.48
  4. Step 4: Simplify right side
    159,885.36x = 19,474,944,935.87
  5. Step 5: Solve for x
    x = 19,474,944,935.87/159,885.36
  6. Step 6: Final answer
    x = 121,805.68

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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.