Home / 123,327.49-170,192.16-66,738.88

Finding the Fourth Proportional to 123,327.49, 170,192.16 and 66,738.88

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Solution

The fourth proportional to 123,327.49, 170,192.16 and 66,738.88 is: 92,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,327.49 : 170,192.16 = 66,738.88 : x
  2. Step 2: Convert to fraction form
    123,327.49/170,192.16 = 66,738.88/x
  3. Step 3: Cross multiply
    123,327.49x = 170,192.16 × 66,738.88
  4. Step 4: Simplify right side
    123,327.49x = 11,358,434,143.18
  5. Step 5: Solve for x
    x = 11,358,434,143.18/123,327.49
  6. Step 6: Final answer
    x = 92,099.78

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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.