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Finding the Fourth Proportional to 159,600.81, 220,250.65 and 87,983.39

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Solution

The fourth proportional to 159,600.81, 220,250.65 and 87,983.39 is: 121,417.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,600.81 : 220,250.65 = 87,983.39 : x
  2. Step 2: Convert to fraction form
    159,600.81/220,250.65 = 87,983.39/x
  3. Step 3: Cross multiply
    159,600.81x = 220,250.65 × 87,983.39
  4. Step 4: Simplify right side
    159,600.81x = 19,378,398,836.70
  5. Step 5: Solve for x
    x = 19,378,398,836.70/159,600.81
  6. Step 6: Final answer
    x = 121,417.92

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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.