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Finding the Fourth Proportional to 123,113.52, 169,896.42 and 66,524.76

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Solution

The fourth proportional to 123,113.52, 169,896.42 and 66,524.76 is: 91,804.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,113.52 : 169,896.42 = 66,524.76 : x
  2. Step 2: Convert to fraction form
    123,113.52/169,896.42 = 66,524.76/x
  3. Step 3: Cross multiply
    123,113.52x = 169,896.42 × 66,524.76
  4. Step 4: Simplify right side
    123,113.52x = 11,302,318,565.36
  5. Step 5: Solve for x
    x = 11,302,318,565.36/123,113.52
  6. Step 6: Final answer
    x = 91,804.04

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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.