Home / 123,747.20-170,642.05-73,436.48

Finding the Fourth Proportional to 123,747.20, 170,642.05 and 73,436.48

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Solution

The fourth proportional to 123,747.20, 170,642.05 and 73,436.48 is: 101,265.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,747.20 : 170,642.05 = 73,436.48 : x
  2. Step 2: Convert to fraction form
    123,747.20/170,642.05 = 73,436.48/x
  3. Step 3: Cross multiply
    123,747.20x = 170,642.05 × 73,436.48
  4. Step 4: Simplify right side
    123,747.20x = 12,531,350,455.18
  5. Step 5: Solve for x
    x = 12,531,350,455.18/123,747.20
  6. Step 6: Final answer
    x = 101,265.73

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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.