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Finding the Fourth Proportional to 159,616.14, 220,271.70 and 87,998.70

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Solution

The fourth proportional to 159,616.14, 220,271.70 and 87,998.70 is: 121,438.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,616.14 : 220,271.70 = 87,998.70 : x
  2. Step 2: Convert to fraction form
    159,616.14/220,271.70 = 87,998.70/x
  3. Step 3: Cross multiply
    159,616.14x = 220,271.70 × 87,998.70
  4. Step 4: Simplify right side
    159,616.14x = 19,383,623,246.79
  5. Step 5: Solve for x
    x = 19,383,623,246.79/159,616.14
  6. Step 6: Final answer
    x = 121,438.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.