Home / 126,243.89-174,225.11-72,550.31

Finding the Fourth Proportional to 126,243.89, 174,225.11 and 72,550.31

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Solution

The fourth proportional to 126,243.89, 174,225.11 and 72,550.31 is: 100,124.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,243.89 : 174,225.11 = 72,550.31 : x
  2. Step 2: Convert to fraction form
    126,243.89/174,225.11 = 72,550.31/x
  3. Step 3: Cross multiply
    126,243.89x = 174,225.11 × 72,550.31
  4. Step 4: Simplify right side
    126,243.89x = 12,640,085,377.53
  5. Step 5: Solve for x
    x = 12,640,085,377.53/126,243.89
  6. Step 6: Final answer
    x = 100,124.33

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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.