Home / 126,240.50-174,217.45-72,542.36

Finding the Fourth Proportional to 126,240.50, 174,217.45 and 72,542.36

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Solution

The fourth proportional to 126,240.50, 174,217.45 and 72,542.36 is: 100,111.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,240.50 : 174,217.45 = 72,542.36 : x
  2. Step 2: Convert to fraction form
    126,240.50/174,217.45 = 72,542.36/x
  3. Step 3: Cross multiply
    126,240.50x = 174,217.45 × 72,542.36
  4. Step 4: Simplify right side
    126,240.50x = 12,638,144,976.18
  5. Step 5: Solve for x
    x = 12,638,144,976.18/126,240.50
  6. Step 6: Final answer
    x = 100,111.65

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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.