Home / 167,905.20-251,639.10-67,983.60

Finding the Fourth Proportional to 167,905.20, 251,639.10 and 67,983.60

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Solution

The fourth proportional to 167,905.20, 251,639.10 and 67,983.60 is: 101,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,905.20 : 251,639.10 = 67,983.60 : x
  2. Step 2: Convert to fraction form
    167,905.20/251,639.10 = 67,983.60/x
  3. Step 3: Cross multiply
    167,905.20x = 251,639.10 × 67,983.60
  4. Step 4: Simplify right side
    167,905.20x = 17,107,331,918.76
  5. Step 5: Solve for x
    x = 17,107,331,918.76/167,905.20
  6. Step 6: Final answer
    x = 101,886.85

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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.