Home / 104,919.05-144,788.28-57,172.39

Finding the Fourth Proportional to 104,919.05, 144,788.28 and 57,172.39

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Solution

The fourth proportional to 104,919.05, 144,788.28 and 57,172.39 is: 78,897.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,919.05 : 144,788.28 = 57,172.39 : x
  2. Step 2: Convert to fraction form
    104,919.05/144,788.28 = 57,172.39/x
  3. Step 3: Cross multiply
    104,919.05x = 144,788.28 × 57,172.39
  4. Step 4: Simplify right side
    104,919.05x = 8,277,892,935.66
  5. Step 5: Solve for x
    x = 8,277,892,935.66/104,919.05
  6. Step 6: Final answer
    x = 78,897.90

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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.