Home / 127,542.34-175,960.89-79,777.54

Finding the Fourth Proportional to 127,542.34, 175,960.89 and 79,777.54

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Solution

The fourth proportional to 127,542.34, 175,960.89 and 79,777.54 is: 110,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,542.34 : 175,960.89 = 79,777.54 : x
  2. Step 2: Convert to fraction form
    127,542.34/175,960.89 = 79,777.54/x
  3. Step 3: Cross multiply
    127,542.34x = 175,960.89 × 79,777.54
  4. Step 4: Simplify right side
    127,542.34x = 14,037,726,940.41
  5. Step 5: Solve for x
    x = 14,037,726,940.41/127,542.34
  6. Step 6: Final answer
    x = 110,063.27

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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.