Home / 260,162.20-390,160.25-82,627.68

Finding the Fourth Proportional to 260,162.20, 390,160.25 and 82,627.68

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Solution

The fourth proportional to 260,162.20, 390,160.25 and 82,627.68 is: 123,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,162.20 : 390,160.25 = 82,627.68 : x
  2. Step 2: Convert to fraction form
    260,162.20/390,160.25 = 82,627.68/x
  3. Step 3: Cross multiply
    260,162.20x = 390,160.25 × 82,627.68
  4. Step 4: Simplify right side
    260,162.20x = 32,238,036,285.72
  5. Step 5: Solve for x
    x = 32,238,036,285.72/260,162.20
  6. Step 6: Final answer
    x = 123,915.14

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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.