Home / 198,430.04-273,905.34-131,383.64

Finding the Fourth Proportional to 198,430.04, 273,905.34 and 131,383.64

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Solution

The fourth proportional to 198,430.04, 273,905.34 and 131,383.64 is: 181,357.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,430.04 : 273,905.34 = 131,383.64 : x
  2. Step 2: Convert to fraction form
    198,430.04/273,905.34 = 131,383.64/x
  3. Step 3: Cross multiply
    198,430.04x = 273,905.34 × 131,383.64
  4. Step 4: Simplify right side
    198,430.04x = 35,986,680,584.64
  5. Step 5: Solve for x
    x = 35,986,680,584.64/198,430.04
  6. Step 6: Final answer
    x = 181,357.02

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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.