Home / 168,629.06-253,068.30-79,882.76

Finding the Fourth Proportional to 168,629.06, 253,068.30 and 79,882.76

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Solution

The fourth proportional to 168,629.06, 253,068.30 and 79,882.76 is: 119,883.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,629.06 : 253,068.30 = 79,882.76 : x
  2. Step 2: Convert to fraction form
    168,629.06/253,068.30 = 79,882.76/x
  3. Step 3: Cross multiply
    168,629.06x = 253,068.30 × 79,882.76
  4. Step 4: Simplify right side
    168,629.06x = 20,215,794,272.51
  5. Step 5: Solve for x
    x = 20,215,794,272.51/168,629.06
  6. Step 6: Final answer
    x = 119,883.22

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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.