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Finding the Third Proportional to 118,129.50 and 177,148.69

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Solution

The third proportional to 118,129.50 and 177,148.69 is: 265,654.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,129.50 : 177,148.69 = 177,148.69 : x
  2. Step 2: Convert to fraction form
    118,129.50/177,148.69 = 177,148.69/x
  3. Step 3: Cross multiply
    118,129.50x = 177,148.69 × 177,148.69
  4. Step 4: Simplify right side
    118,129.50x = 31,381,657,482.97
  5. Step 5: Solve for x
    x = 31,381,657,482.97/118,129.50
  6. Step 6: Final answer
    x = 265,654.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.