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Finding the Fourth Proportional to 126,181.62, 174,127.59 and 69,591.78

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Solution

The fourth proportional to 126,181.62, 174,127.59 and 69,591.78 is: 96,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,181.62 : 174,127.59 = 69,591.78 : x
  2. Step 2: Convert to fraction form
    126,181.62/174,127.59 = 69,591.78/x
  3. Step 3: Cross multiply
    126,181.62x = 174,127.59 × 69,591.78
  4. Step 4: Simplify right side
    126,181.62x = 12,117,848,935.21
  5. Step 5: Solve for x
    x = 12,117,848,935.21/126,181.62
  6. Step 6: Final answer
    x = 96,034.98

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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.