Home / 161,343.24-222,650.69-89,722.64

Finding the Fourth Proportional to 161,343.24, 222,650.69 and 89,722.64

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Solution

The fourth proportional to 161,343.24, 222,650.69 and 89,722.64 is: 123,815.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,343.24 : 222,650.69 = 89,722.64 : x
  2. Step 2: Convert to fraction form
    161,343.24/222,650.69 = 89,722.64/x
  3. Step 3: Cross multiply
    161,343.24x = 222,650.69 × 89,722.64
  4. Step 4: Simplify right side
    161,343.24x = 19,976,806,142.76
  5. Step 5: Solve for x
    x = 19,976,806,142.76/161,343.24
  6. Step 6: Final answer
    x = 123,815.58

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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.