Home / 213,084.57-319,402.14-70,891.76

Finding the Fourth Proportional to 213,084.57, 319,402.14 and 70,891.76

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Solution

The fourth proportional to 213,084.57, 319,402.14 and 70,891.76 is: 106,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,084.57 : 319,402.14 = 70,891.76 : x
  2. Step 2: Convert to fraction form
    213,084.57/319,402.14 = 70,891.76/x
  3. Step 3: Cross multiply
    213,084.57x = 319,402.14 × 70,891.76
  4. Step 4: Simplify right side
    213,084.57x = 22,642,978,255.36
  5. Step 5: Solve for x
    x = 22,642,978,255.36/213,084.57
  6. Step 6: Final answer
    x = 106,262.87

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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.