Home / 126,882.45-175,103.58-72,449.36

Finding the Fourth Proportional to 126,882.45, 175,103.58 and 72,449.36

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Solution

The fourth proportional to 126,882.45, 175,103.58 and 72,449.36 is: 99,983.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,882.45 : 175,103.58 = 72,449.36 : x
  2. Step 2: Convert to fraction form
    126,882.45/175,103.58 = 72,449.36/x
  3. Step 3: Cross multiply
    126,882.45x = 175,103.58 × 72,449.36
  4. Step 4: Simplify right side
    126,882.45x = 12,686,141,429.19
  5. Step 5: Solve for x
    x = 12,686,141,429.19/126,882.45
  6. Step 6: Final answer
    x = 99,983.42

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1.5x scale

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.