Home / 186,053.20-279,144.60-80,947.60

Finding the Fourth Proportional to 186,053.20, 279,144.60 and 80,947.60

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Solution

The fourth proportional to 186,053.20, 279,144.60 and 80,947.60 is: 121,449.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,053.20 : 279,144.60 = 80,947.60 : x
  2. Step 2: Convert to fraction form
    186,053.20/279,144.60 = 80,947.60/x
  3. Step 3: Cross multiply
    186,053.20x = 279,144.60 × 80,947.60
  4. Step 4: Simplify right side
    186,053.20x = 22,596,085,422.96
  5. Step 5: Solve for x
    x = 22,596,085,422.96/186,053.20
  6. Step 6: Final answer
    x = 121,449.59

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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.