Home / 207,217.90-285,961.14-122,340.43

Finding the Fourth Proportional to 207,217.90, 285,961.14 and 122,340.43

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Solution

The fourth proportional to 207,217.90, 285,961.14 and 122,340.43 is: 168,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,217.90 : 285,961.14 = 122,340.43 : x
  2. Step 2: Convert to fraction form
    207,217.90/285,961.14 = 122,340.43/x
  3. Step 3: Cross multiply
    207,217.90x = 285,961.14 × 122,340.43
  4. Step 4: Simplify right side
    207,217.90x = 34,984,606,789.38
  5. Step 5: Solve for x
    x = 34,984,606,789.38/207,217.90
  6. Step 6: Final answer
    x = 168,830.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.