Home / 139,933.20-209,899.80-132,351.60

Finding the Fourth Proportional to 139,933.20, 209,899.80 and 132,351.60

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Solution

The fourth proportional to 139,933.20, 209,899.80 and 132,351.60 is: 198,527.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,933.20 : 209,899.80 = 132,351.60 : x
  2. Step 2: Convert to fraction form
    139,933.20/209,899.80 = 132,351.60/x
  3. Step 3: Cross multiply
    139,933.20x = 209,899.80 × 132,351.60
  4. Step 4: Simplify right side
    139,933.20x = 27,780,574,369.68
  5. Step 5: Solve for x
    x = 27,780,574,369.68/139,933.20
  6. Step 6: Final answer
    x = 198,527.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.