Home / 159,979.38-220,752.65-88,355.13

Finding the Fourth Proportional to 159,979.38, 220,752.65 and 88,355.13

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Solution

The fourth proportional to 159,979.38, 220,752.65 and 88,355.13 is: 121,919.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,979.38 : 220,752.65 = 88,355.13 : x
  2. Step 2: Convert to fraction form
    159,979.38/220,752.65 = 88,355.13/x
  3. Step 3: Cross multiply
    159,979.38x = 220,752.65 × 88,355.13
  4. Step 4: Simplify right side
    159,979.38x = 19,504,629,088.59
  5. Step 5: Solve for x
    x = 19,504,629,088.59/159,979.38
  6. Step 6: Final answer
    x = 121,919.64

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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.