Home / 107,932.20-161,898.30-105,858.60

Finding the Fourth Proportional to 107,932.20, 161,898.30 and 105,858.60

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Solution

The fourth proportional to 107,932.20, 161,898.30 and 105,858.60 is: 158,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,932.20 : 161,898.30 = 105,858.60 : x
  2. Step 2: Convert to fraction form
    107,932.20/161,898.30 = 105,858.60/x
  3. Step 3: Cross multiply
    107,932.20x = 161,898.30 × 105,858.60
  4. Step 4: Simplify right side
    107,932.20x = 17,138,327,380.38
  5. Step 5: Solve for x
    x = 17,138,327,380.38/107,932.20
  6. Step 6: Final answer
    x = 158,787.90

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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.