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Finding the Fourth Proportional to 123,969.26, 171,070.34 and 67,380.14

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Solution

The fourth proportional to 123,969.26, 171,070.34 and 67,380.14 is: 92,980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,969.26 : 171,070.34 = 67,380.14 : x
  2. Step 2: Convert to fraction form
    123,969.26/171,070.34 = 67,380.14/x
  3. Step 3: Cross multiply
    123,969.26x = 171,070.34 × 67,380.14
  4. Step 4: Simplify right side
    123,969.26x = 11,526,743,459.05
  5. Step 5: Solve for x
    x = 11,526,743,459.05/123,969.26
  6. Step 6: Final answer
    x = 92,980.66

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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.