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Finding the Fourth Proportional to 123,797.78, 170,840.46 and 67,209.14

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Solution

The fourth proportional to 123,797.78, 170,840.46 and 67,209.14 is: 92,748.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,797.78 : 170,840.46 = 67,209.14 : x
  2. Step 2: Convert to fraction form
    123,797.78/170,840.46 = 67,209.14/x
  3. Step 3: Cross multiply
    123,797.78x = 170,840.46 × 67,209.14
  4. Step 4: Simplify right side
    123,797.78x = 11,482,040,393.80
  5. Step 5: Solve for x
    x = 11,482,040,393.80/123,797.78
  6. Step 6: Final answer
    x = 92,748.35

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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.