Home / 201,770.22-278,376.26-130,197.81

Finding the Fourth Proportional to 201,770.22, 278,376.26 and 130,197.81

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Solution

The fourth proportional to 201,770.22, 278,376.26 and 130,197.81 is: 179,629.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,770.22 : 278,376.26 = 130,197.81 : x
  2. Step 2: Convert to fraction form
    201,770.22/278,376.26 = 130,197.81/x
  3. Step 3: Cross multiply
    201,770.22x = 278,376.26 × 130,197.81
  4. Step 4: Simplify right side
    201,770.22x = 36,243,978,757.00
  5. Step 5: Solve for x
    x = 36,243,978,757.00/201,770.22
  6. Step 6: Final answer
    x = 179,629.97

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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.