Home / 198,417.78-273,818.76-116,764.10

Finding the Fourth Proportional to 198,417.78, 273,818.76 and 116,764.10

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Solution

The fourth proportional to 198,417.78, 273,818.76 and 116,764.10 is: 161,135.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,417.78 : 273,818.76 = 116,764.10 : x
  2. Step 2: Convert to fraction form
    198,417.78/273,818.76 = 116,764.10/x
  3. Step 3: Cross multiply
    198,417.78x = 273,818.76 × 116,764.10
  4. Step 4: Simplify right side
    198,417.78x = 31,972,199,705.42
  5. Step 5: Solve for x
    x = 31,972,199,705.42/198,417.78
  6. Step 6: Final answer
    x = 161,135.76

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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.