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Finding the Fourth Proportional to 159,550.05, 220,177.98 and 87,930.12

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Solution

The fourth proportional to 159,550.05, 220,177.98 and 87,930.12 is: 121,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,550.05 : 220,177.98 = 87,930.12 : x
  2. Step 2: Convert to fraction form
    159,550.05/220,177.98 = 87,930.12/x
  3. Step 3: Cross multiply
    159,550.05x = 220,177.98 × 87,930.12
  4. Step 4: Simplify right side
    159,550.05x = 19,360,276,202.76
  5. Step 5: Solve for x
    x = 19,360,276,202.76/159,550.05
  6. Step 6: Final answer
    x = 121,342.97

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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.