Home / 97,983.76-146,859-68,240.56

Finding the Fourth Proportional to 97,983.76, 146,859 and 68,240.56

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Solution

The fourth proportional to 97,983.76, 146,859 and 68,240.56 is: 102,279.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,983.76 : 146,859 = 68,240.56 : x
  2. Step 2: Convert to fraction form
    97,983.76/146,859 = 68,240.56/x
  3. Step 3: Cross multiply
    97,983.76x = 146,859 × 68,240.56
  4. Step 4: Simplify right side
    97,983.76x = 10,021,740,401.04
  5. Step 5: Solve for x
    x = 10,021,740,401.04/97,983.76
  6. Step 6: Final answer
    x = 102,279.61

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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.