Home / 126,401.76-174,429.72-69,811.92

Finding the Fourth Proportional to 126,401.76, 174,429.72 and 69,811.92

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Solution

The fourth proportional to 126,401.76, 174,429.72 and 69,811.92 is: 96,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,401.76 : 174,429.72 = 69,811.92 : x
  2. Step 2: Convert to fraction form
    126,401.76/174,429.72 = 69,811.92/x
  3. Step 3: Cross multiply
    126,401.76x = 174,429.72 × 69,811.92
  4. Step 4: Simplify right side
    126,401.76x = 12,177,273,658.26
  5. Step 5: Solve for x
    x = 12,177,273,658.26/126,401.76
  6. Step 6: Final answer
    x = 96,337.85

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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.