Home / 186,422.20-279,633.30-81,446.20

Finding the Fourth Proportional to 186,422.20, 279,633.30 and 81,446.20

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Solution

The fourth proportional to 186,422.20, 279,633.30 and 81,446.20 is: 122,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,422.20 : 279,633.30 = 81,446.20 : x
  2. Step 2: Convert to fraction form
    186,422.20/279,633.30 = 81,446.20/x
  3. Step 3: Cross multiply
    186,422.20x = 279,633.30 × 81,446.20
  4. Step 4: Simplify right side
    186,422.20x = 22,775,069,678.46
  5. Step 5: Solve for x
    x = 22,775,069,678.46/186,422.20
  6. Step 6: Final answer
    x = 122,169.30

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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.