Home / 260,169.20-390,170.76-82,634.66

Finding the Fourth Proportional to 260,169.20, 390,170.76 and 82,634.66

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Solution

The fourth proportional to 260,169.20, 390,170.76 and 82,634.66 is: 123,925.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,169.20 : 390,170.76 = 82,634.66 : x
  2. Step 2: Convert to fraction form
    260,169.20/390,170.76 = 82,634.66/x
  3. Step 3: Cross multiply
    260,169.20x = 390,170.76 × 82,634.66
  4. Step 4: Simplify right side
    260,169.20x = 32,241,628,094.54
  5. Step 5: Solve for x
    x = 32,241,628,094.54/260,169.20
  6. Step 6: Final answer
    x = 123,925.61

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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.