Home / 126,360.92-174,387.26-72,662.78

Finding the Fourth Proportional to 126,360.92, 174,387.26 and 72,662.78

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Solution

The fourth proportional to 126,360.92, 174,387.26 and 72,662.78 is: 100,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,360.92 : 174,387.26 = 72,662.78 : x
  2. Step 2: Convert to fraction form
    126,360.92/174,387.26 = 72,662.78/x
  3. Step 3: Cross multiply
    126,360.92x = 174,387.26 × 72,662.78
  4. Step 4: Simplify right side
    126,360.92x = 12,671,463,108.18
  5. Step 5: Solve for x
    x = 12,671,463,108.18/126,360.92
  6. Step 6: Final answer
    x = 100,279.92

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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.