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Finding the Fourth Proportional to 126,207, 174,166.02 and 69,617.88

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Solution

The fourth proportional to 126,207, 174,166.02 and 69,617.88 is: 96,072.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,207 : 174,166.02 = 69,617.88 : x
  2. Step 2: Convert to fraction form
    126,207/174,166.02 = 69,617.88/x
  3. Step 3: Cross multiply
    126,207x = 174,166.02 × 69,617.88
  4. Step 4: Simplify right side
    126,207x = 12,125,069,080.44
  5. Step 5: Solve for x
    x = 12,125,069,080.44/126,207
  6. Step 6: Final answer
    x = 96,072.87

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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.