Home / 132,419.77-182,741.36-71,990.65

Finding the Fourth Proportional to 132,419.77, 182,741.36 and 71,990.65

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Solution

The fourth proportional to 132,419.77, 182,741.36 and 71,990.65 is: 99,348.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,419.77 : 182,741.36 = 71,990.65 : x
  2. Step 2: Convert to fraction form
    132,419.77/182,741.36 = 71,990.65/x
  3. Step 3: Cross multiply
    132,419.77x = 182,741.36 × 71,990.65
  4. Step 4: Simplify right side
    132,419.77x = 13,155,668,837.50
  5. Step 5: Solve for x
    x = 13,155,668,837.50/132,419.77
  6. Step 6: Final answer
    x = 99,348.22

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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.