Home / 125,265.39-172,866.03-68,680.41

Finding the Fourth Proportional to 125,265.39, 172,866.03 and 68,680.41

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Solution

The fourth proportional to 125,265.39, 172,866.03 and 68,680.41 is: 94,778.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,265.39 : 172,866.03 = 68,680.41 : x
  2. Step 2: Convert to fraction form
    125,265.39/172,866.03 = 68,680.41/x
  3. Step 3: Cross multiply
    125,265.39x = 172,866.03 × 68,680.41
  4. Step 4: Simplify right side
    125,265.39x = 11,872,509,815.47
  5. Step 5: Solve for x
    x = 11,872,509,815.47/125,265.39
  6. Step 6: Final answer
    x = 94,778.85

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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.