Home / 126,910.10-175,117.02-78,560.66

Finding the Fourth Proportional to 126,910.10, 175,117.02 and 78,560.66

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Solution

The fourth proportional to 126,910.10, 175,117.02 and 78,560.66 is: 108,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,910.10 : 175,117.02 = 78,560.66 : x
  2. Step 2: Convert to fraction form
    126,910.10/175,117.02 = 78,560.66/x
  3. Step 3: Cross multiply
    126,910.10x = 175,117.02 × 78,560.66
  4. Step 4: Simplify right side
    126,910.10x = 13,757,308,668.43
  5. Step 5: Solve for x
    x = 13,757,308,668.43/126,910.10
  6. Step 6: Final answer
    x = 108,402.00

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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.