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Finding the Fourth Proportional to 115,374.58, 159,217.05 and 65,073.58

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Solution

The fourth proportional to 115,374.58, 159,217.05 and 65,073.58 is: 89,801.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,374.58 : 159,217.05 = 65,073.58 : x
  2. Step 2: Convert to fraction form
    115,374.58/159,217.05 = 65,073.58/x
  3. Step 3: Cross multiply
    115,374.58x = 159,217.05 × 65,073.58
  4. Step 4: Simplify right side
    115,374.58x = 10,360,823,440.54
  5. Step 5: Solve for x
    x = 10,360,823,440.54/115,374.58
  6. Step 6: Final answer
    x = 89,801.61

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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.