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Finding the Fourth Proportional to 123,176.98, 169,984.26 and 66,588.34

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Solution

The fourth proportional to 123,176.98, 169,984.26 and 66,588.34 is: 91,891.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,176.98 : 169,984.26 = 66,588.34 : x
  2. Step 2: Convert to fraction form
    123,176.98/169,984.26 = 66,588.34/x
  3. Step 3: Cross multiply
    123,176.98x = 169,984.26 × 66,588.34
  4. Step 4: Simplify right side
    123,176.98x = 11,318,969,699.53
  5. Step 5: Solve for x
    x = 11,318,969,699.53/123,176.98
  6. Step 6: Final answer
    x = 91,891.92

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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.