Home / 126,799.40-175,035.66-81,479.90

Finding the Fourth Proportional to 126,799.40, 175,035.66 and 81,479.90

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Solution

The fourth proportional to 126,799.40, 175,035.66 and 81,479.90 is: 112,475.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,799.40 : 175,035.66 = 81,479.90 : x
  2. Step 2: Convert to fraction form
    126,799.40/175,035.66 = 81,479.90/x
  3. Step 3: Cross multiply
    126,799.40x = 175,035.66 × 81,479.90
  4. Step 4: Simplify right side
    126,799.40x = 14,261,888,073.23
  5. Step 5: Solve for x
    x = 14,261,888,073.23/126,799.40
  6. Step 6: Final answer
    x = 112,475.99

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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.