Home / 123,294.57-170,146.20-69,579.42

Finding the Fourth Proportional to 123,294.57, 170,146.20 and 69,579.42

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Solution

The fourth proportional to 123,294.57, 170,146.20 and 69,579.42 is: 96,019.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,294.57 : 170,146.20 = 69,579.42 : x
  2. Step 2: Convert to fraction form
    123,294.57/170,146.20 = 69,579.42/x
  3. Step 3: Cross multiply
    123,294.57x = 170,146.20 × 69,579.42
  4. Step 4: Simplify right side
    123,294.57x = 11,838,673,911.20
  5. Step 5: Solve for x
    x = 11,838,673,911.20/123,294.57
  6. Step 6: Final answer
    x = 96,019.43

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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.