Home / 198,089.64-273,362.11-107,445.38

Finding the Fourth Proportional to 198,089.64, 273,362.11 and 107,445.38

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Solution

The fourth proportional to 198,089.64, 273,362.11 and 107,445.38 is: 148,273.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,089.64 : 273,362.11 = 107,445.38 : x
  2. Step 2: Convert to fraction form
    198,089.64/273,362.11 = 107,445.38/x
  3. Step 3: Cross multiply
    198,089.64x = 273,362.11 × 107,445.38
  4. Step 4: Simplify right side
    198,089.64x = 29,371,494,151.13
  5. Step 5: Solve for x
    x = 29,371,494,151.13/198,089.64
  6. Step 6: Final answer
    x = 148,273.75

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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.