Home / 126,117.10-173,943.18-80,799.30

Finding the Fourth Proportional to 126,117.10, 173,943.18 and 80,799.30

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Solution

The fourth proportional to 126,117.10, 173,943.18 and 80,799.30 is: 111,439.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,117.10 : 173,943.18 = 80,799.30 : x
  2. Step 2: Convert to fraction form
    126,117.10/173,943.18 = 80,799.30/x
  3. Step 3: Cross multiply
    126,117.10x = 173,943.18 × 80,799.30
  4. Step 4: Simplify right side
    126,117.10x = 14,054,487,183.77
  5. Step 5: Solve for x
    x = 14,054,487,183.77/126,117.10
  6. Step 6: Final answer
    x = 111,439.98

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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.