Home / 207,960.56-312,079.20-113,214.64

Finding the Fourth Proportional to 207,960.56, 312,079.20 and 113,214.64

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Solution

The fourth proportional to 207,960.56, 312,079.20 and 113,214.64 is: 169,897.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,960.56 : 312,079.20 = 113,214.64 : x
  2. Step 2: Convert to fraction form
    207,960.56/312,079.20 = 113,214.64/x
  3. Step 3: Cross multiply
    207,960.56x = 312,079.20 × 113,214.64
  4. Step 4: Simplify right side
    207,960.56x = 35,331,934,279.49
  5. Step 5: Solve for x
    x = 35,331,934,279.49/207,960.56
  6. Step 6: Final answer
    x = 169,897.28

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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.