Home / 127,540.44-175,932.54-79,710.75

Finding the Fourth Proportional to 127,540.44, 175,932.54 and 79,710.75

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Solution

The fourth proportional to 127,540.44, 175,932.54 and 79,710.75 is: 109,955.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,540.44 : 175,932.54 = 79,710.75 : x
  2. Step 2: Convert to fraction form
    127,540.44/175,932.54 = 79,710.75/x
  3. Step 3: Cross multiply
    127,540.44x = 175,932.54 × 79,710.75
  4. Step 4: Simplify right side
    127,540.44x = 14,023,714,712.81
  5. Step 5: Solve for x
    x = 14,023,714,712.81/127,540.44
  6. Step 6: Final answer
    x = 109,955.04

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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.