Home / 198,243.05-273,575.78-113,360.11

Finding the Fourth Proportional to 198,243.05, 273,575.78 and 113,360.11

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Solution

The fourth proportional to 198,243.05, 273,575.78 and 113,360.11 is: 156,437.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,243.05 : 273,575.78 = 113,360.11 : x
  2. Step 2: Convert to fraction form
    198,243.05/273,575.78 = 113,360.11/x
  3. Step 3: Cross multiply
    198,243.05x = 273,575.78 × 113,360.11
  4. Step 4: Simplify right side
    198,243.05x = 31,012,579,688.50
  5. Step 5: Solve for x
    x = 31,012,579,688.50/198,243.05
  6. Step 6: Final answer
    x = 156,437.16

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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.