Home / 186,298.44-278,589.25-138,357.57

Finding the Fourth Proportional to 186,298.44, 278,589.25 and 138,357.57

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Solution

The fourth proportional to 186,298.44, 278,589.25 and 138,357.57 is: 206,898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,298.44 : 278,589.25 = 138,357.57 : x
  2. Step 2: Convert to fraction form
    186,298.44/278,589.25 = 138,357.57/x
  3. Step 3: Cross multiply
    186,298.44x = 278,589.25 × 138,357.57
  4. Step 4: Simplify right side
    186,298.44x = 38,544,931,658.12
  5. Step 5: Solve for x
    x = 38,544,931,658.12/186,298.44
  6. Step 6: Final answer
    x = 206,898.84

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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.