Home / 198,039.88-297,121.10-64,921.16

Finding the Fourth Proportional to 198,039.88, 297,121.10 and 64,921.16

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Solution

The fourth proportional to 198,039.88, 297,121.10 and 64,921.16 is: 97,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,039.88 : 297,121.10 = 64,921.16 : x
  2. Step 2: Convert to fraction form
    198,039.88/297,121.10 = 64,921.16/x
  3. Step 3: Cross multiply
    198,039.88x = 297,121.10 × 64,921.16
  4. Step 4: Simplify right side
    198,039.88x = 19,289,446,472.48
  5. Step 5: Solve for x
    x = 19,289,446,472.48/198,039.88
  6. Step 6: Final answer
    x = 97,401.83

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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.