Home / 198,409.91-273,807.66-107,767.64

Finding the Fourth Proportional to 198,409.91, 273,807.66 and 107,767.64

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Solution

The fourth proportional to 198,409.91, 273,807.66 and 107,767.64 is: 148,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,409.91 : 273,807.66 = 107,767.64 : x
  2. Step 2: Convert to fraction form
    198,409.91/273,807.66 = 107,767.64/x
  3. Step 3: Cross multiply
    198,409.91x = 273,807.66 × 107,767.64
  4. Step 4: Simplify right side
    198,409.91x = 29,507,606,420.77
  5. Step 5: Solve for x
    x = 29,507,606,420.77/198,409.91
  6. Step 6: Final answer
    x = 148,720.43

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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.