Home / 104,320.38-143,982.54-68,509.47

Finding the Fourth Proportional to 104,320.38, 143,982.54 and 68,509.47

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Solution

The fourth proportional to 104,320.38, 143,982.54 and 68,509.47 is: 94,556.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,320.38 : 143,982.54 = 68,509.47 : x
  2. Step 2: Convert to fraction form
    104,320.38/143,982.54 = 68,509.47/x
  3. Step 3: Cross multiply
    104,320.38x = 143,982.54 × 68,509.47
  4. Step 4: Simplify right side
    104,320.38x = 9,864,167,504.65
  5. Step 5: Solve for x
    x = 9,864,167,504.65/104,320.38
  6. Step 6: Final answer
    x = 94,556.48

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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.