Home / 123,160.38-169,961.22-66,571.76

Finding the Fourth Proportional to 123,160.38, 169,961.22 and 66,571.76

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Solution

The fourth proportional to 123,160.38, 169,961.22 and 66,571.76 is: 91,868.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,160.38 : 169,961.22 = 66,571.76 : x
  2. Step 2: Convert to fraction form
    123,160.38/169,961.22 = 66,571.76/x
  3. Step 3: Cross multiply
    123,160.38x = 169,961.22 × 66,571.76
  4. Step 4: Simplify right side
    123,160.38x = 11,314,616,697.34
  5. Step 5: Solve for x
    x = 11,314,616,697.34/123,160.38
  6. Step 6: Final answer
    x = 91,868.97

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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.