Home / 123,781.50-170,818.07-67,192.47

Finding the Fourth Proportional to 123,781.50, 170,818.07 and 67,192.47

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Solution

The fourth proportional to 123,781.50, 170,818.07 and 67,192.47 is: 92,725.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,781.50 : 170,818.07 = 67,192.47 : x
  2. Step 2: Convert to fraction form
    123,781.50/170,818.07 = 67,192.47/x
  3. Step 3: Cross multiply
    123,781.50x = 170,818.07 × 67,192.47
  4. Step 4: Simplify right side
    123,781.50x = 11,477,687,707.97
  5. Step 5: Solve for x
    x = 11,477,687,707.97/123,781.50
  6. Step 6: Final answer
    x = 92,725.39

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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.