Home / 123,204.52-170,022.26-66,615.88

Finding the Fourth Proportional to 123,204.52, 170,022.26 and 66,615.88

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Solution

The fourth proportional to 123,204.52, 170,022.26 and 66,615.88 is: 91,929.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,204.52 : 170,022.26 = 66,615.88 : x
  2. Step 2: Convert to fraction form
    123,204.52/170,022.26 = 66,615.88/x
  3. Step 3: Cross multiply
    123,204.52x = 170,022.26 × 66,615.88
  4. Step 4: Simplify right side
    123,204.52x = 11,326,182,469.49
  5. Step 5: Solve for x
    x = 11,326,182,469.49/123,204.52
  6. Step 6: Final answer
    x = 91,929.93

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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.