Home / 123,549.56-170,496.87-66,959.72

Finding the Fourth Proportional to 123,549.56, 170,496.87 and 66,959.72

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Solution

The fourth proportional to 123,549.56, 170,496.87 and 66,959.72 is: 92,403.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,549.56 : 170,496.87 = 66,959.72 : x
  2. Step 2: Convert to fraction form
    123,549.56/170,496.87 = 66,959.72/x
  3. Step 3: Cross multiply
    123,549.56x = 170,496.87 × 66,959.72
  4. Step 4: Simplify right side
    123,549.56x = 11,416,422,676.08
  5. Step 5: Solve for x
    x = 11,416,422,676.08/123,549.56
  6. Step 6: Final answer
    x = 92,403.59

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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.