Home / 123,542.20-170,488.15-66,953.58

Finding the Fourth Proportional to 123,542.20, 170,488.15 and 66,953.58

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Solution

The fourth proportional to 123,542.20, 170,488.15 and 66,953.58 is: 92,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,542.20 : 170,488.15 = 66,953.58 : x
  2. Step 2: Convert to fraction form
    123,542.20/170,488.15 = 66,953.58/x
  3. Step 3: Cross multiply
    123,542.20x = 170,488.15 × 66,953.58
  4. Step 4: Simplify right side
    123,542.20x = 11,414,791,990.08
  5. Step 5: Solve for x
    x = 11,414,791,990.08/123,542.20
  6. Step 6: Final answer
    x = 92,395.89

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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.