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Finding the Fourth Proportional to 151,682.70, 209,363.76 and 88,041

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Solution

The fourth proportional to 151,682.70, 209,363.76 and 88,041 is: 121,520.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,682.70 : 209,363.76 = 88,041 : x
  2. Step 2: Convert to fraction form
    151,682.70/209,363.76 = 88,041/x
  3. Step 3: Cross multiply
    151,682.70x = 209,363.76 × 88,041
  4. Step 4: Simplify right side
    151,682.70x = 18,432,594,794.16
  5. Step 5: Solve for x
    x = 18,432,594,794.16/151,682.70
  6. Step 6: Final answer
    x = 121,520.75

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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.