Home / 123,560.04-170,512.44-66,971.64

Finding the Fourth Proportional to 123,560.04, 170,512.44 and 66,971.64

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Solution

The fourth proportional to 123,560.04, 170,512.44 and 66,971.64 is: 92,420.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,560.04 : 170,512.44 = 66,971.64 : x
  2. Step 2: Convert to fraction form
    123,560.04/170,512.44 = 66,971.64/x
  3. Step 3: Cross multiply
    123,560.04x = 170,512.44 × 66,971.64
  4. Step 4: Simplify right side
    123,560.04x = 11,419,497,747.20
  5. Step 5: Solve for x
    x = 11,419,497,747.20/123,560.04
  6. Step 6: Final answer
    x = 92,420.64

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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.