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Finding the Fourth Proportional to 123,459.66, 170,375.00 and 66,871.04

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Solution

The fourth proportional to 123,459.66, 170,375.00 and 66,871.04 is: 92,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,459.66 : 170,375.00 = 66,871.04 : x
  2. Step 2: Convert to fraction form
    123,459.66/170,375.00 = 66,871.04/x
  3. Step 3: Cross multiply
    123,459.66x = 170,375.00 × 66,871.04
  4. Step 4: Simplify right side
    123,459.66x = 11,393,152,253.77
  5. Step 5: Solve for x
    x = 11,393,152,253.77/123,459.66
  6. Step 6: Final answer
    x = 92,282.39

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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.