Home / 134,489.38-185,595.87-80,775.31

Finding the Fourth Proportional to 134,489.38, 185,595.87 and 80,775.31

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Solution

The fourth proportional to 134,489.38, 185,595.87 and 80,775.31 is: 111,470.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,489.38 : 185,595.87 = 80,775.31 : x
  2. Step 2: Convert to fraction form
    134,489.38/185,595.87 = 80,775.31/x
  3. Step 3: Cross multiply
    134,489.38x = 185,595.87 × 80,775.31
  4. Step 4: Simplify right side
    134,489.38x = 14,991,563,933.97
  5. Step 5: Solve for x
    x = 14,991,563,933.97/134,489.38
  6. Step 6: Final answer
    x = 111,470.24

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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.