Home / 260,167.20-390,167.76-82,632.66

Finding the Fourth Proportional to 260,167.20, 390,167.76 and 82,632.66

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Solution

The fourth proportional to 260,167.20, 390,167.76 and 82,632.66 is: 123,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,167.20 : 390,167.76 = 82,632.66 : x
  2. Step 2: Convert to fraction form
    260,167.20/390,167.76 = 82,632.66/x
  3. Step 3: Cross multiply
    260,167.20x = 390,167.76 × 82,632.66
  4. Step 4: Simplify right side
    260,167.20x = 32,240,599,855.04
  5. Step 5: Solve for x
    x = 32,240,599,855.04/260,167.20
  6. Step 6: Final answer
    x = 123,922.62

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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.