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Finding the Fourth Proportional to 159,639.66, 220,302.13 and 88,023.61

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Solution

The fourth proportional to 159,639.66, 220,302.13 and 88,023.61 is: 121,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,639.66 : 220,302.13 = 88,023.61 : x
  2. Step 2: Convert to fraction form
    159,639.66/220,302.13 = 88,023.61/x
  3. Step 3: Cross multiply
    159,639.66x = 220,302.13 × 88,023.61
  4. Step 4: Simplify right side
    159,639.66x = 19,391,788,993.65
  5. Step 5: Solve for x
    x = 19,391,788,993.65/159,639.66
  6. Step 6: Final answer
    x = 121,472.25

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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.