Home / 186,986.60-280,577.10-81,816.20

Finding the Fourth Proportional to 186,986.60, 280,577.10 and 81,816.20

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Solution

The fourth proportional to 186,986.60, 280,577.10 and 81,816.20 is: 122,766.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,986.60 : 280,577.10 = 81,816.20 : x
  2. Step 2: Convert to fraction form
    186,986.60/280,577.10 = 81,816.20/x
  3. Step 3: Cross multiply
    186,986.60x = 280,577.10 × 81,816.20
  4. Step 4: Simplify right side
    186,986.60x = 22,955,752,129.02
  5. Step 5: Solve for x
    x = 22,955,752,129.02/186,986.60
  6. Step 6: Final answer
    x = 122,766.83

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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.