Home / 126,339.65-174,419.63-87,633.85

Finding the Fourth Proportional to 126,339.65, 174,419.63 and 87,633.85

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Solution

The fourth proportional to 126,339.65, 174,419.63 and 87,633.85 is: 120,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,339.65 : 174,419.63 = 87,633.85 : x
  2. Step 2: Convert to fraction form
    126,339.65/174,419.63 = 87,633.85/x
  3. Step 3: Cross multiply
    126,339.65x = 174,419.63 × 87,633.85
  4. Step 4: Simplify right side
    126,339.65x = 15,285,063,473.92
  5. Step 5: Solve for x
    x = 15,285,063,473.92/126,339.65
  6. Step 6: Final answer
    x = 120,983.90

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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.