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Finding the Fourth Proportional to 126,625, 174,747.08 and 70,036.78

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Solution

The fourth proportional to 126,625, 174,747.08 and 70,036.78 is: 96,653.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,625 : 174,747.08 = 70,036.78 : x
  2. Step 2: Convert to fraction form
    126,625/174,747.08 = 70,036.78/x
  3. Step 3: Cross multiply
    126,625x = 174,747.08 × 70,036.78
  4. Step 4: Simplify right side
    126,625x = 12,238,722,797.60
  5. Step 5: Solve for x
    x = 12,238,722,797.60/126,625
  6. Step 6: Final answer
    x = 96,653.29

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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.