Home / 198,357.21-273,731.96-107,712.37

Finding the Fourth Proportional to 198,357.21, 273,731.96 and 107,712.37

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Solution

The fourth proportional to 198,357.21, 273,731.96 and 107,712.37 is: 148,642.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,357.21 : 273,731.96 = 107,712.37 : x
  2. Step 2: Convert to fraction form
    198,357.21/273,731.96 = 107,712.37/x
  3. Step 3: Cross multiply
    198,357.21x = 273,731.96 × 107,712.37
  4. Step 4: Simplify right side
    198,357.21x = 29,484,316,249.12
  5. Step 5: Solve for x
    x = 29,484,316,249.12/198,357.21
  6. Step 6: Final answer
    x = 148,642.52

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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.