Home / 123,743.11-170,765.61-67,154.49

Finding the Fourth Proportional to 123,743.11, 170,765.61 and 67,154.49

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Solution

The fourth proportional to 123,743.11, 170,765.61 and 67,154.49 is: 92,673.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,743.11 : 170,765.61 = 67,154.49 : x
  2. Step 2: Convert to fraction form
    123,743.11/170,765.61 = 67,154.49/x
  3. Step 3: Cross multiply
    123,743.11x = 170,765.61 × 67,154.49
  4. Step 4: Simplify right side
    123,743.11x = 11,467,677,449.09
  5. Step 5: Solve for x
    x = 11,467,677,449.09/123,743.11
  6. Step 6: Final answer
    x = 92,673.26

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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.