Home / 127,540.34-175,958.13-79,775.54

Finding the Fourth Proportional to 127,540.34, 175,958.13 and 79,775.54

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Solution

The fourth proportional to 127,540.34, 175,958.13 and 79,775.54 is: 110,060.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,540.34 : 175,958.13 = 79,775.54 : x
  2. Step 2: Convert to fraction form
    127,540.34/175,958.13 = 79,775.54/x
  3. Step 3: Cross multiply
    127,540.34x = 175,958.13 × 79,775.54
  4. Step 4: Simplify right side
    127,540.34x = 14,037,154,838.14
  5. Step 5: Solve for x
    x = 14,037,154,838.14/127,540.34
  6. Step 6: Final answer
    x = 110,060.51

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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.