Home / 198,522.72-273,961.13-107,878.47

Finding the Fourth Proportional to 198,522.72, 273,961.13 and 107,878.47

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Solution

The fourth proportional to 198,522.72, 273,961.13 and 107,878.47 is: 148,872.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,522.72 : 273,961.13 = 107,878.47 : x
  2. Step 2: Convert to fraction form
    198,522.72/273,961.13 = 107,878.47/x
  3. Step 3: Cross multiply
    198,522.72x = 273,961.13 × 107,878.47
  4. Step 4: Simplify right side
    198,522.72x = 29,554,507,543.87
  5. Step 5: Solve for x
    x = 29,554,507,543.87/198,522.72
  6. Step 6: Final answer
    x = 148,872.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.