Home / 123,387.90-170,275.37-66,799.28

Finding the Fourth Proportional to 123,387.90, 170,275.37 and 66,799.28

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Solution

The fourth proportional to 123,387.90, 170,275.37 and 66,799.28 is: 92,183.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,387.90 : 170,275.37 = 66,799.28 : x
  2. Step 2: Convert to fraction form
    123,387.90/170,275.37 = 66,799.28/x
  3. Step 3: Cross multiply
    123,387.90x = 170,275.37 × 66,799.28
  4. Step 4: Simplify right side
    123,387.90x = 11,374,270,932.36
  5. Step 5: Solve for x
    x = 11,374,270,932.36/123,387.90
  6. Step 6: Final answer
    x = 92,183.03

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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.