Home / 102,696.36-154,044.61-67,187.51

Finding the Fourth Proportional to 102,696.36, 154,044.61 and 67,187.51

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Solution

The fourth proportional to 102,696.36, 154,044.61 and 67,187.51 is: 100,781.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,696.36 : 154,044.61 = 67,187.51 : x
  2. Step 2: Convert to fraction form
    102,696.36/154,044.61 = 67,187.51/x
  3. Step 3: Cross multiply
    102,696.36x = 154,044.61 × 67,187.51
  4. Step 4: Simplify right side
    102,696.36x = 10,349,873,414.30
  5. Step 5: Solve for x
    x = 10,349,873,414.30/102,696.36
  6. Step 6: Final answer
    x = 100,781.31

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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.