Home / 123,586.41-170,548.84-66,997.78

Finding the Fourth Proportional to 123,586.41, 170,548.84 and 66,997.78

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Solution

The fourth proportional to 123,586.41, 170,548.84 and 66,997.78 is: 92,456.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,586.41 : 170,548.84 = 66,997.78 : x
  2. Step 2: Convert to fraction form
    123,586.41/170,548.84 = 66,997.78/x
  3. Step 3: Cross multiply
    123,586.41x = 170,548.84 × 66,997.78
  4. Step 4: Simplify right side
    123,586.41x = 11,426,393,661.58
  5. Step 5: Solve for x
    x = 11,426,393,661.58/123,586.41
  6. Step 6: Final answer
    x = 92,456.72

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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.