Home / 167,939.20-251,690.10-68,017.60

Finding the Fourth Proportional to 167,939.20, 251,690.10 and 68,017.60

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Solution

The fourth proportional to 167,939.20, 251,690.10 and 68,017.60 is: 101,937.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,939.20 : 251,690.10 = 68,017.60 : x
  2. Step 2: Convert to fraction form
    167,939.20/251,690.10 = 68,017.60/x
  3. Step 3: Cross multiply
    167,939.20x = 251,690.10 × 68,017.60
  4. Step 4: Simplify right side
    167,939.20x = 17,119,356,545.76
  5. Step 5: Solve for x
    x = 17,119,356,545.76/167,939.20
  6. Step 6: Final answer
    x = 101,937.82

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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.