Home / 123,422.77-170,325.08-68,972.55

Finding the Fourth Proportional to 123,422.77, 170,325.08 and 68,972.55

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Solution

The fourth proportional to 123,422.77, 170,325.08 and 68,972.55 is: 95,183.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,422.77 : 170,325.08 = 68,972.55 : x
  2. Step 2: Convert to fraction form
    123,422.77/170,325.08 = 68,972.55/x
  3. Step 3: Cross multiply
    123,422.77x = 170,325.08 × 68,972.55
  4. Step 4: Simplify right side
    123,422.77x = 11,747,755,096.55
  5. Step 5: Solve for x
    x = 11,747,755,096.55/123,422.77
  6. Step 6: Final answer
    x = 95,183.05

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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.