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Finding the Fourth Proportional to 159,628.32, 220,288.56 and 88,010.88

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Solution

The fourth proportional to 159,628.32, 220,288.56 and 88,010.88 is: 121,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,628.32 : 220,288.56 = 88,010.88 : x
  2. Step 2: Convert to fraction form
    159,628.32/220,288.56 = 88,010.88/x
  3. Step 3: Cross multiply
    159,628.32x = 220,288.56 × 88,010.88
  4. Step 4: Simplify right side
    159,628.32x = 19,387,790,019.53
  5. Step 5: Solve for x
    x = 19,387,790,019.53/159,628.32
  6. Step 6: Final answer
    x = 121,455.83

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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.