Home / 185,785.55-278,590.43-71,986.63

Finding the Fourth Proportional to 185,785.55, 278,590.43 and 71,986.63

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Solution

The fourth proportional to 185,785.55, 278,590.43 and 71,986.63 is: 107,945.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,785.55 : 278,590.43 = 71,986.63 : x
  2. Step 2: Convert to fraction form
    185,785.55/278,590.43 = 71,986.63/x
  3. Step 3: Cross multiply
    185,785.55x = 278,590.43 × 71,986.63
  4. Step 4: Simplify right side
    185,785.55x = 20,054,785,689.44
  5. Step 5: Solve for x
    x = 20,054,785,689.44/185,785.55
  6. Step 6: Final answer
    x = 107,945.88

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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.