Home / 272,026.20-407,844.90-122,143.80

Finding the Fourth Proportional to 272,026.20, 407,844.90 and 122,143.80

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Solution

The fourth proportional to 272,026.20, 407,844.90 and 122,143.80 is: 183,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,026.20 : 407,844.90 = 122,143.80 : x
  2. Step 2: Convert to fraction form
    272,026.20/407,844.90 = 122,143.80/x
  3. Step 3: Cross multiply
    272,026.20x = 407,844.90 × 122,143.80
  4. Step 4: Simplify right side
    272,026.20x = 49,815,725,896.62
  5. Step 5: Solve for x
    x = 49,815,725,896.62/272,026.20
  6. Step 6: Final answer
    x = 183,128.41

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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.