Home / 113,835.64-170,330.56-71,517.60

Finding the Fourth Proportional to 113,835.64, 170,330.56 and 71,517.60

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Solution

The fourth proportional to 113,835.64, 170,330.56 and 71,517.60 is: 107,010.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,835.64 : 170,330.56 = 71,517.60 : x
  2. Step 2: Convert to fraction form
    113,835.64/170,330.56 = 71,517.60/x
  3. Step 3: Cross multiply
    113,835.64x = 170,330.56 × 71,517.60
  4. Step 4: Simplify right side
    113,835.64x = 12,181,632,857.86
  5. Step 5: Solve for x
    x = 12,181,632,857.86/113,835.64
  6. Step 6: Final answer
    x = 107,010.71

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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.