Home / 123,461.28-170,377.22-66,872.66

Finding the Fourth Proportional to 123,461.28, 170,377.22 and 66,872.66

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Solution

The fourth proportional to 123,461.28, 170,377.22 and 66,872.66 is: 92,284.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,461.28 : 170,377.22 = 66,872.66 : x
  2. Step 2: Convert to fraction form
    123,461.28/170,377.22 = 66,872.66/x
  3. Step 3: Cross multiply
    123,461.28x = 170,377.22 × 66,872.66
  4. Step 4: Simplify right side
    123,461.28x = 11,393,577,220.10
  5. Step 5: Solve for x
    x = 11,393,577,220.10/123,461.28
  6. Step 6: Final answer
    x = 92,284.62

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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.