Home / 260,739.08-391,295.14-111,084.20

Finding the Fourth Proportional to 260,739.08, 391,295.14 and 111,084.20

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Solution

The fourth proportional to 260,739.08, 391,295.14 and 111,084.20 is: 166,705.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,739.08 : 391,295.14 = 111,084.20 : x
  2. Step 2: Convert to fraction form
    260,739.08/391,295.14 = 111,084.20/x
  3. Step 3: Cross multiply
    260,739.08x = 391,295.14 × 111,084.20
  4. Step 4: Simplify right side
    260,739.08x = 43,466,707,590.79
  5. Step 5: Solve for x
    x = 43,466,707,590.79/260,739.08
  6. Step 6: Final answer
    x = 166,705.76

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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.