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Finding the Fourth Proportional to 118,549.10, 163,657.24 and 91,630.78

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Solution

The fourth proportional to 118,549.10, 163,657.24 and 91,630.78 is: 126,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,549.10 : 163,657.24 = 91,630.78 : x
  2. Step 2: Convert to fraction form
    118,549.10/163,657.24 = 91,630.78/x
  3. Step 3: Cross multiply
    118,549.10x = 163,657.24 × 91,630.78
  4. Step 4: Simplify right side
    118,549.10x = 14,996,040,553.85
  5. Step 5: Solve for x
    x = 14,996,040,553.85/118,549.10
  6. Step 6: Final answer
    x = 126,496.45

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1.5x scale

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.