Home / 185,382.05-278,083.92-71,530.47

Finding the Fourth Proportional to 185,382.05, 278,083.92 and 71,530.47

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Solution

The fourth proportional to 185,382.05, 278,083.92 and 71,530.47 is: 107,299.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,382.05 : 278,083.92 = 71,530.47 : x
  2. Step 2: Convert to fraction form
    185,382.05/278,083.92 = 71,530.47/x
  3. Step 3: Cross multiply
    185,382.05x = 278,083.92 × 71,530.47
  4. Step 4: Simplify right side
    185,382.05x = 19,891,473,118.12
  5. Step 5: Solve for x
    x = 19,891,473,118.12/185,382.05
  6. Step 6: Final answer
    x = 107,299.89

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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.