Home / 198,018.19-273,279.59-113,133.43

Finding the Fourth Proportional to 198,018.19, 273,279.59 and 113,133.43

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Solution

The fourth proportional to 198,018.19, 273,279.59 and 113,133.43 is: 156,132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,018.19 : 273,279.59 = 113,133.43 : x
  2. Step 2: Convert to fraction form
    198,018.19/273,279.59 = 113,133.43/x
  3. Step 3: Cross multiply
    198,018.19x = 273,279.59 × 113,133.43
  4. Step 4: Simplify right side
    198,018.19x = 30,917,057,365.69
  5. Step 5: Solve for x
    x = 30,917,057,365.69/198,018.19
  6. Step 6: Final answer
    x = 156,132.41

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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.