Home / 160,469.90-221,247.46-103,007.84

Finding the Fourth Proportional to 160,469.90, 221,247.46 and 103,007.84

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Solution

The fourth proportional to 160,469.90, 221,247.46 and 103,007.84 is: 142,021.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,469.90 : 221,247.46 = 103,007.84 : x
  2. Step 2: Convert to fraction form
    160,469.90/221,247.46 = 103,007.84/x
  3. Step 3: Cross multiply
    160,469.90x = 221,247.46 × 103,007.84
  4. Step 4: Simplify right side
    160,469.90x = 22,790,222,960.09
  5. Step 5: Solve for x
    x = 22,790,222,960.09/160,469.90
  6. Step 6: Final answer
    x = 142,021.79

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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.