Home / 198,309.89-273,667.74-107,665.76

Finding the Fourth Proportional to 198,309.89, 273,667.74 and 107,665.76

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Solution

The fourth proportional to 198,309.89, 273,667.74 and 107,665.76 is: 148,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,309.89 : 273,667.74 = 107,665.76 : x
  2. Step 2: Convert to fraction form
    198,309.89/273,667.74 = 107,665.76/x
  3. Step 3: Cross multiply
    198,309.89x = 273,667.74 × 107,665.76
  4. Step 4: Simplify right side
    198,309.89x = 29,464,645,214.58
  5. Step 5: Solve for x
    x = 29,464,645,214.58/198,309.89
  6. Step 6: Final answer
    x = 148,578.80

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1.5x scale

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.