Home / 132,419.86-182,741.48-71,990.73

Finding the Fourth Proportional to 132,419.86, 182,741.48 and 71,990.73

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Solution

The fourth proportional to 132,419.86, 182,741.48 and 71,990.73 is: 99,348.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,419.86 : 182,741.48 = 71,990.73 : x
  2. Step 2: Convert to fraction form
    132,419.86/182,741.48 = 71,990.73/x
  3. Step 3: Cross multiply
    132,419.86x = 182,741.48 × 71,990.73
  4. Step 4: Simplify right side
    132,419.86x = 13,155,693,183.31
  5. Step 5: Solve for x
    x = 13,155,693,183.31/132,419.86
  6. Step 6: Final answer
    x = 99,348.34

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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.