Home / 83,708.24-126,137.82-69,241.23

Finding the Fourth Proportional to 83,708.24, 126,137.82 and 69,241.23

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Solution

The fourth proportional to 83,708.24, 126,137.82 and 69,241.23 is: 104,337.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,708.24 : 126,137.82 = 69,241.23 : x
  2. Step 2: Convert to fraction form
    83,708.24/126,137.82 = 69,241.23/x
  3. Step 3: Cross multiply
    83,708.24x = 126,137.82 × 69,241.23
  4. Step 4: Simplify right side
    83,708.24x = 8,733,938,065.97
  5. Step 5: Solve for x
    x = 8,733,938,065.97/83,708.24
  6. Step 6: Final answer
    x = 104,337.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.