Home / 198,310.89-273,669.12-107,666.76

Finding the Fourth Proportional to 198,310.89, 273,669.12 and 107,666.76

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Solution

The fourth proportional to 198,310.89, 273,669.12 and 107,666.76 is: 148,580.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,310.89 : 273,669.12 = 107,666.76 : x
  2. Step 2: Convert to fraction form
    198,310.89/273,669.12 = 107,666.76/x
  3. Step 3: Cross multiply
    198,310.89x = 273,669.12 × 107,666.76
  4. Step 4: Simplify right side
    198,310.89x = 29,465,067,462.45
  5. Step 5: Solve for x
    x = 29,465,067,462.45/198,310.89
  6. Step 6: Final answer
    x = 148,580.18

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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.