Home / 231,072.20-318,708.90-146,107.40

Finding the Fourth Proportional to 231,072.20, 318,708.90 and 146,107.40

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Solution

The fourth proportional to 231,072.20, 318,708.90 and 146,107.40 is: 201,520.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,072.20 : 318,708.90 = 146,107.40 : x
  2. Step 2: Convert to fraction form
    231,072.20/318,708.90 = 146,107.40/x
  3. Step 3: Cross multiply
    231,072.20x = 318,708.90 × 146,107.40
  4. Step 4: Simplify right side
    231,072.20x = 46,565,728,735.86
  5. Step 5: Solve for x
    x = 46,565,728,735.86/231,072.20
  6. Step 6: Final answer
    x = 201,520.26

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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.