Home / 226,605.45-312,723.39-124,638.64

Finding the Fourth Proportional to 226,605.45, 312,723.39 and 124,638.64

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Solution

The fourth proportional to 226,605.45, 312,723.39 and 124,638.64 is: 172,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,605.45 : 312,723.39 = 124,638.64 : x
  2. Step 2: Convert to fraction form
    226,605.45/312,723.39 = 124,638.64/x
  3. Step 3: Cross multiply
    226,605.45x = 312,723.39 × 124,638.64
  4. Step 4: Simplify right side
    226,605.45x = 38,977,418,025.79
  5. Step 5: Solve for x
    x = 38,977,418,025.79/226,605.45
  6. Step 6: Final answer
    x = 172,005.65

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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.