Home / 193,414.72-289,986-74,986.24

Finding the Fourth Proportional to 193,414.72, 289,986 and 74,986.24

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Solution

The fourth proportional to 193,414.72, 289,986 and 74,986.24 is: 112,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,414.72 : 289,986 = 74,986.24 : x
  2. Step 2: Convert to fraction form
    193,414.72/289,986 = 74,986.24/x
  3. Step 3: Cross multiply
    193,414.72x = 289,986 × 74,986.24
  4. Step 4: Simplify right side
    193,414.72x = 21,744,959,792.64
  5. Step 5: Solve for x
    x = 21,744,959,792.64/193,414.72
  6. Step 6: Final answer
    x = 112,426.60

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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.