Home / 212,868.82-319,006.68-107,564.86

Finding the Fourth Proportional to 212,868.82, 319,006.68 and 107,564.86

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Solution

The fourth proportional to 212,868.82, 319,006.68 and 107,564.86 is: 161,197.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,868.82 : 319,006.68 = 107,564.86 : x
  2. Step 2: Convert to fraction form
    212,868.82/319,006.68 = 107,564.86/x
  3. Step 3: Cross multiply
    212,868.82x = 319,006.68 × 107,564.86
  4. Step 4: Simplify right side
    212,868.82x = 34,313,908,873.26
  5. Step 5: Solve for x
    x = 34,313,908,873.26/212,868.82
  6. Step 6: Final answer
    x = 161,197.44

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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.