Home / 186,860.18-280,377.74-81,665.48

Finding the Fourth Proportional to 186,860.18, 280,377.74 and 81,665.48

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Solution

The fourth proportional to 186,860.18, 280,377.74 and 81,665.48 is: 122,536.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,860.18 : 280,377.74 = 81,665.48 : x
  2. Step 2: Convert to fraction form
    186,860.18/280,377.74 = 81,665.48/x
  3. Step 3: Cross multiply
    186,860.18x = 280,377.74 × 81,665.48
  4. Step 4: Simplify right side
    186,860.18x = 22,897,181,520.69
  5. Step 5: Solve for x
    x = 22,897,181,520.69/186,860.18
  6. Step 6: Final answer
    x = 122,536.44

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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.