Home / 107,789.28-161,385.84-55,085.28

Finding the Fourth Proportional to 107,789.28, 161,385.84 and 55,085.28

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Solution

The fourth proportional to 107,789.28, 161,385.84 and 55,085.28 is: 82,475.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,789.28 : 161,385.84 = 55,085.28 : x
  2. Step 2: Convert to fraction form
    107,789.28/161,385.84 = 55,085.28/x
  3. Step 3: Cross multiply
    107,789.28x = 161,385.84 × 55,085.28
  4. Step 4: Simplify right side
    107,789.28x = 8,889,984,184.44
  5. Step 5: Solve for x
    x = 8,889,984,184.44/107,789.28
  6. Step 6: Final answer
    x = 82,475.59

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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.