Home / 123,784.46-170,821.38-67,195.76

Finding the Fourth Proportional to 123,784.46, 170,821.38 and 67,195.76

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Solution

The fourth proportional to 123,784.46, 170,821.38 and 67,195.76 is: 92,729.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,784.46 : 170,821.38 = 67,195.76 : x
  2. Step 2: Convert to fraction form
    123,784.46/170,821.38 = 67,195.76/x
  3. Step 3: Cross multiply
    123,784.46x = 170,821.38 × 67,195.76
  4. Step 4: Simplify right side
    123,784.46x = 11,478,472,453.35
  5. Step 5: Solve for x
    x = 11,478,472,453.35/123,784.46
  6. Step 6: Final answer
    x = 92,729.51

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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.