Home / 154,278.76-231,510.10-68,882.98

Finding the Fourth Proportional to 154,278.76, 231,510.10 and 68,882.98

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Solution

The fourth proportional to 154,278.76, 231,510.10 and 68,882.98 is: 103,365.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,278.76 : 231,510.10 = 68,882.98 : x
  2. Step 2: Convert to fraction form
    154,278.76/231,510.10 = 68,882.98/x
  3. Step 3: Cross multiply
    154,278.76x = 231,510.10 × 68,882.98
  4. Step 4: Simplify right side
    154,278.76x = 15,947,105,588.10
  5. Step 5: Solve for x
    x = 15,947,105,588.10/154,278.76
  6. Step 6: Final answer
    x = 103,365.53

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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.