Home / 126,242.20-174,277.36-78,510.92

Finding the Fourth Proportional to 126,242.20, 174,277.36 and 78,510.92

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Solution

The fourth proportional to 126,242.20, 174,277.36 and 78,510.92 is: 108,384.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,242.20 : 174,277.36 = 78,510.92 : x
  2. Step 2: Convert to fraction form
    126,242.20/174,277.36 = 78,510.92/x
  3. Step 3: Cross multiply
    126,242.20x = 174,277.36 × 78,510.92
  4. Step 4: Simplify right side
    126,242.20x = 13,682,676,500.74
  5. Step 5: Solve for x
    x = 13,682,676,500.74/126,242.20
  6. Step 6: Final answer
    x = 108,384.33

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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.