Home / 126,391.50-174,418.83-72,676.74

Finding the Fourth Proportional to 126,391.50, 174,418.83 and 72,676.74

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Solution

The fourth proportional to 126,391.50, 174,418.83 and 72,676.74 is: 100,293.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,391.50 : 174,418.83 = 72,676.74 : x
  2. Step 2: Convert to fraction form
    126,391.50/174,418.83 = 72,676.74/x
  3. Step 3: Cross multiply
    126,391.50x = 174,418.83 × 72,676.74
  4. Step 4: Simplify right side
    126,391.50x = 12,676,191,959.01
  5. Step 5: Solve for x
    x = 12,676,191,959.01/126,391.50
  6. Step 6: Final answer
    x = 100,293.07

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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.