Home / 186,945.12-280,357.26-80,300.52

Finding the Fourth Proportional to 186,945.12, 280,357.26 and 80,300.52

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Solution

The fourth proportional to 186,945.12, 280,357.26 and 80,300.52 is: 120,424.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,945.12 : 280,357.26 = 80,300.52 : x
  2. Step 2: Convert to fraction form
    186,945.12/280,357.26 = 80,300.52/x
  3. Step 3: Cross multiply
    186,945.12x = 280,357.26 × 80,300.52
  4. Step 4: Simplify right side
    186,945.12x = 22,512,833,763.78
  5. Step 5: Solve for x
    x = 22,512,833,763.78/186,945.12
  6. Step 6: Final answer
    x = 120,424.83

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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.