Home / 198,356.09-273,730.40-107,711.24

Finding the Fourth Proportional to 198,356.09, 273,730.40 and 107,711.24

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Solution

The fourth proportional to 198,356.09, 273,730.40 and 107,711.24 is: 148,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,356.09 : 273,730.40 = 107,711.24 : x
  2. Step 2: Convert to fraction form
    198,356.09/273,730.40 = 107,711.24/x
  3. Step 3: Cross multiply
    198,356.09x = 273,730.40 × 107,711.24
  4. Step 4: Simplify right side
    198,356.09x = 29,483,840,809.70
  5. Step 5: Solve for x
    x = 29,483,840,809.70/198,356.09
  6. Step 6: Final answer
    x = 148,640.97

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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.