Home / 185,824.98-278,838.99-80,643.78

Finding the Fourth Proportional to 185,824.98, 278,838.99 and 80,643.78

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Solution

The fourth proportional to 185,824.98, 278,838.99 and 80,643.78 is: 121,009.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,824.98 : 278,838.99 = 80,643.78 : x
  2. Step 2: Convert to fraction form
    185,824.98/278,838.99 = 80,643.78/x
  3. Step 3: Cross multiply
    185,824.98x = 278,838.99 × 80,643.78
  4. Step 4: Simplify right side
    185,824.98x = 22,486,630,164.98
  5. Step 5: Solve for x
    x = 22,486,630,164.98/185,824.98
  6. Step 6: Final answer
    x = 121,009.73

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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.