Home / 161,524.20-242,137.26-86,696.76

Finding the Fourth Proportional to 161,524.20, 242,137.26 and 86,696.76

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Solution

The fourth proportional to 161,524.20, 242,137.26 and 86,696.76 is: 129,965.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,524.20 : 242,137.26 = 86,696.76 : x
  2. Step 2: Convert to fraction form
    161,524.20/242,137.26 = 86,696.76/x
  3. Step 3: Cross multiply
    161,524.20x = 242,137.26 × 86,696.76
  4. Step 4: Simplify right side
    161,524.20x = 20,992,515,917.28
  5. Step 5: Solve for x
    x = 20,992,515,917.28/161,524.20
  6. Step 6: Final answer
    x = 129,965.14

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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.