Home / 185,744.48-278,663.88-85,976.64

Finding the Fourth Proportional to 185,744.48, 278,663.88 and 85,976.64

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Solution

The fourth proportional to 185,744.48, 278,663.88 and 85,976.64 is: 128,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,744.48 : 278,663.88 = 85,976.64 : x
  2. Step 2: Convert to fraction form
    185,744.48/278,663.88 = 85,976.64/x
  3. Step 3: Cross multiply
    185,744.48x = 278,663.88 × 85,976.64
  4. Step 4: Simplify right side
    185,744.48x = 23,958,584,091.76
  5. Step 5: Solve for x
    x = 23,958,584,091.76/185,744.48
  6. Step 6: Final answer
    x = 128,986.79

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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.