Home / 198,318.60-273,678.07-107,672.77

Finding the Fourth Proportional to 198,318.60, 273,678.07 and 107,672.77

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Solution

The fourth proportional to 198,318.60, 273,678.07 and 107,672.77 is: 148,587.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,318.60 : 273,678.07 = 107,672.77 : x
  2. Step 2: Convert to fraction form
    198,318.60/273,678.07 = 107,672.77/x
  3. Step 3: Cross multiply
    198,318.60x = 273,678.07 × 107,672.77
  4. Step 4: Simplify right side
    198,318.60x = 29,467,675,087.41
  5. Step 5: Solve for x
    x = 29,467,675,087.41/198,318.60
  6. Step 6: Final answer
    x = 148,587.55

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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.