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Finding the Fourth Proportional to 123,343.41, 170,214.41 and 66,754.77

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Solution

The fourth proportional to 123,343.41, 170,214.41 and 66,754.77 is: 92,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,343.41 : 170,214.41 = 66,754.77 : x
  2. Step 2: Convert to fraction form
    123,343.41/170,214.41 = 66,754.77/x
  3. Step 3: Cross multiply
    123,343.41x = 170,214.41 × 66,754.77
  4. Step 4: Simplify right side
    123,343.41x = 11,362,623,456.46
  5. Step 5: Solve for x
    x = 11,362,623,456.46/123,343.41
  6. Step 6: Final answer
    x = 92,121.85

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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.