Home / 198,065.12-273,328.62-107,423.24

Finding the Fourth Proportional to 198,065.12, 273,328.62 and 107,423.24

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Solution

The fourth proportional to 198,065.12, 273,328.62 and 107,423.24 is: 148,243.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,065.12 : 273,328.62 = 107,423.24 : x
  2. Step 2: Convert to fraction form
    198,065.12/273,328.62 = 107,423.24/x
  3. Step 3: Cross multiply
    198,065.12x = 273,328.62 × 107,423.24
  4. Step 4: Simplify right side
    198,065.12x = 29,361,845,945.13
  5. Step 5: Solve for x
    x = 29,361,845,945.13/198,065.12
  6. Step 6: Final answer
    x = 148,243.40

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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.