Home / 152,542.71-228,721.68-68,287.14

Finding the Fourth Proportional to 152,542.71, 228,721.68 and 68,287.14

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Solution

The fourth proportional to 152,542.71, 228,721.68 and 68,287.14 is: 102,389.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,542.71 : 228,721.68 = 68,287.14 : x
  2. Step 2: Convert to fraction form
    152,542.71/228,721.68 = 68,287.14/x
  3. Step 3: Cross multiply
    152,542.71x = 228,721.68 × 68,287.14
  4. Step 4: Simplify right side
    152,542.71x = 15,618,749,383.20
  5. Step 5: Solve for x
    x = 15,618,749,383.20/152,542.71
  6. Step 6: Final answer
    x = 102,389.35

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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.