Home / 123,734.17-170,753.09-67,145.55

Finding the Fourth Proportional to 123,734.17, 170,753.09 and 67,145.55

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Solution

The fourth proportional to 123,734.17, 170,753.09 and 67,145.55 is: 92,660.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,734.17 : 170,753.09 = 67,145.55 : x
  2. Step 2: Convert to fraction form
    123,734.17/170,753.09 = 67,145.55/x
  3. Step 3: Cross multiply
    123,734.17x = 170,753.09 × 67,145.55
  4. Step 4: Simplify right side
    123,734.17x = 11,465,310,142.25
  5. Step 5: Solve for x
    x = 11,465,310,142.25/123,734.17
  6. Step 6: Final answer
    x = 92,660.82

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1.5x scale

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.