Home / 123,255.36-170,082.72-69,553.44

Finding the Fourth Proportional to 123,255.36, 170,082.72 and 69,553.44

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Solution

The fourth proportional to 123,255.36, 170,082.72 and 69,553.44 is: 95,978.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,255.36 : 170,082.72 = 69,553.44 : x
  2. Step 2: Convert to fraction form
    123,255.36/170,082.72 = 69,553.44/x
  3. Step 3: Cross multiply
    123,255.36x = 170,082.72 × 69,553.44
  4. Step 4: Simplify right side
    123,255.36x = 11,829,838,260.56
  5. Step 5: Solve for x
    x = 11,829,838,260.56/123,255.36
  6. Step 6: Final answer
    x = 95,978.29

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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.