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Finding the Fourth Proportional to 179,489.75, 247,684.12 and 98,917.29

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Solution

The fourth proportional to 179,489.75, 247,684.12 and 98,917.29 is: 136,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,489.75 : 247,684.12 = 98,917.29 : x
  2. Step 2: Convert to fraction form
    179,489.75/247,684.12 = 98,917.29/x
  3. Step 3: Cross multiply
    179,489.75x = 247,684.12 × 98,917.29
  4. Step 4: Simplify right side
    179,489.75x = 24,500,241,679.14
  5. Step 5: Solve for x
    x = 24,500,241,679.14/179,489.75
  6. Step 6: Final answer
    x = 136,499.40

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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.