Home / 226,124.28-312,076.26-129,337.02

Finding the Fourth Proportional to 226,124.28, 312,076.26 and 129,337.02

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Solution

The fourth proportional to 226,124.28, 312,076.26 and 129,337.02 is: 178,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,124.28 : 312,076.26 = 129,337.02 : x
  2. Step 2: Convert to fraction form
    226,124.28/312,076.26 = 129,337.02/x
  3. Step 3: Cross multiply
    226,124.28x = 312,076.26 × 129,337.02
  4. Step 4: Simplify right side
    226,124.28x = 40,363,013,481.15
  5. Step 5: Solve for x
    x = 40,363,013,481.15/226,124.28
  6. Step 6: Final answer
    x = 178,499.25

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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.