Home / 125,481.68-173,099.40-101,635.28

Finding the Fourth Proportional to 125,481.68, 173,099.40 and 101,635.28

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Solution

The fourth proportional to 125,481.68, 173,099.40 and 101,635.28 is: 140,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,481.68 : 173,099.40 = 101,635.28 : x
  2. Step 2: Convert to fraction form
    125,481.68/173,099.40 = 101,635.28/x
  3. Step 3: Cross multiply
    125,481.68x = 173,099.40 × 101,635.28
  4. Step 4: Simplify right side
    125,481.68x = 17,593,005,986.83
  5. Step 5: Solve for x
    x = 17,593,005,986.83/125,481.68
  6. Step 6: Final answer
    x = 140,203.78

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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.