Home / 123,781.41-170,820.36-67,192.79

Finding the Fourth Proportional to 123,781.41, 170,820.36 and 67,192.79

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Solution

The fourth proportional to 123,781.41, 170,820.36 and 67,192.79 is: 92,727.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,781.41 : 170,820.36 = 67,192.79 : x
  2. Step 2: Convert to fraction form
    123,781.41/170,820.36 = 67,192.79/x
  3. Step 3: Cross multiply
    123,781.41x = 170,820.36 × 67,192.79
  4. Step 4: Simplify right side
    123,781.41x = 11,477,895,723.10
  5. Step 5: Solve for x
    x = 11,477,895,723.10/123,781.41
  6. Step 6: Final answer
    x = 92,727.14

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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.