Home / 193,899.28-290,672.88-69,211.12

Finding the Fourth Proportional to 193,899.28, 290,672.88 and 69,211.12

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Solution

The fourth proportional to 193,899.28, 290,672.88 and 69,211.12 is: 103,753.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,899.28 : 290,672.88 = 69,211.12 : x
  2. Step 2: Convert to fraction form
    193,899.28/290,672.88 = 69,211.12/x
  3. Step 3: Cross multiply
    193,899.28x = 290,672.88 × 69,211.12
  4. Step 4: Simplify right side
    193,899.28x = 20,117,795,578.43
  5. Step 5: Solve for x
    x = 20,117,795,578.43/193,899.28
  6. Step 6: Final answer
    x = 103,753.84

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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.