Home / 159,585.12-220,227.49-87,966.71

Finding the Fourth Proportional to 159,585.12, 220,227.49 and 87,966.71

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Solution

The fourth proportional to 159,585.12, 220,227.49 and 87,966.71 is: 121,394.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,585.12 : 220,227.49 = 87,966.71 : x
  2. Step 2: Convert to fraction form
    159,585.12/220,227.49 = 87,966.71/x
  3. Step 3: Cross multiply
    159,585.12x = 220,227.49 × 87,966.71
  4. Step 4: Simplify right side
    159,585.12x = 19,372,687,581.53
  5. Step 5: Solve for x
    x = 19,372,687,581.53/159,585.12
  6. Step 6: Final answer
    x = 121,394.07

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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.