Home / 126,778.20-174,953.28-69,416.48

Finding the Fourth Proportional to 126,778.20, 174,953.28 and 69,416.48

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Solution

The fourth proportional to 126,778.20, 174,953.28 and 69,416.48 is: 95,794.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,778.20 : 174,953.28 = 69,416.48 : x
  2. Step 2: Convert to fraction form
    126,778.20/174,953.28 = 69,416.48/x
  3. Step 3: Cross multiply
    126,778.20x = 174,953.28 × 69,416.48
  4. Step 4: Simplify right side
    126,778.20x = 12,144,640,862.05
  5. Step 5: Solve for x
    x = 12,144,640,862.05/126,778.20
  6. Step 6: Final answer
    x = 95,794.39

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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.