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Finding the Fourth Proportional to 159,819.81, 220,550.32 and 88,199.83

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Solution

The fourth proportional to 159,819.81, 220,550.32 and 88,199.83 is: 121,715.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,819.81 : 220,550.32 = 88,199.83 : x
  2. Step 2: Convert to fraction form
    159,819.81/220,550.32 = 88,199.83/x
  3. Step 3: Cross multiply
    159,819.81x = 220,550.32 × 88,199.83
  4. Step 4: Simplify right side
    159,819.81x = 19,452,500,992.32
  5. Step 5: Solve for x
    x = 19,452,500,992.32/159,819.81
  6. Step 6: Final answer
    x = 121,715.21

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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.