Home / 185,514.56-278,309.40-78,898.28

Finding the Fourth Proportional to 185,514.56, 278,309.40 and 78,898.28

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Solution

The fourth proportional to 185,514.56, 278,309.40 and 78,898.28 is: 118,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,514.56 : 278,309.40 = 78,898.28 : x
  2. Step 2: Convert to fraction form
    185,514.56/278,309.40 = 78,898.28/x
  3. Step 3: Cross multiply
    185,514.56x = 278,309.40 × 78,898.28
  4. Step 4: Simplify right side
    185,514.56x = 21,958,132,967.83
  5. Step 5: Solve for x
    x = 21,958,132,967.83/185,514.56
  6. Step 6: Final answer
    x = 118,363.39

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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.