Home / 123,385.92-170,272.61-66,797.29

Finding the Fourth Proportional to 123,385.92, 170,272.61 and 66,797.29

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Solution

The fourth proportional to 123,385.92, 170,272.61 and 66,797.29 is: 92,180.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,385.92 : 170,272.61 = 66,797.29 : x
  2. Step 2: Convert to fraction form
    123,385.92/170,272.61 = 66,797.29/x
  3. Step 3: Cross multiply
    123,385.92x = 170,272.61 × 66,797.29
  4. Step 4: Simplify right side
    123,385.92x = 11,373,748,909.23
  5. Step 5: Solve for x
    x = 11,373,748,909.23/123,385.92
  6. Step 6: Final answer
    x = 92,180.28

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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.