Home / 122,083.20-183,319.20-82,814.40

Finding the Fourth Proportional to 122,083.20, 183,319.20 and 82,814.40

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Solution

The fourth proportional to 122,083.20, 183,319.20 and 82,814.40 is: 124,353.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,083.20 : 183,319.20 = 82,814.40 : x
  2. Step 2: Convert to fraction form
    122,083.20/183,319.20 = 82,814.40/x
  3. Step 3: Cross multiply
    122,083.20x = 183,319.20 × 82,814.40
  4. Step 4: Simplify right side
    122,083.20x = 15,181,469,556.48
  5. Step 5: Solve for x
    x = 15,181,469,556.48/122,083.20
  6. Step 6: Final answer
    x = 124,353.47

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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.