Home / 127,719.46-191,381.55-87,757.54

Finding the Fourth Proportional to 127,719.46, 191,381.55 and 87,757.54

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Solution

The fourth proportional to 127,719.46, 191,381.55 and 87,757.54 is: 131,500.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,719.46 : 191,381.55 = 87,757.54 : x
  2. Step 2: Convert to fraction form
    127,719.46/191,381.55 = 87,757.54/x
  3. Step 3: Cross multiply
    127,719.46x = 191,381.55 × 87,757.54
  4. Step 4: Simplify right side
    127,719.46x = 16,795,174,029.39
  5. Step 5: Solve for x
    x = 16,795,174,029.39/127,719.46
  6. Step 6: Final answer
    x = 131,500.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.