Home / 83,104.52-125,217.73-68,637.51

Finding the Fourth Proportional to 83,104.52, 125,217.73 and 68,637.51

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Solution

The fourth proportional to 83,104.52, 125,217.73 and 68,637.51 is: 103,419.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,104.52 : 125,217.73 = 68,637.51 : x
  2. Step 2: Convert to fraction form
    83,104.52/125,217.73 = 68,637.51/x
  3. Step 3: Cross multiply
    83,104.52x = 125,217.73 × 68,637.51
  4. Step 4: Simplify right side
    83,104.52x = 8,594,633,280.85
  5. Step 5: Solve for x
    x = 8,594,633,280.85/83,104.52
  6. Step 6: Final answer
    x = 103,419.57

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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.