Home / 104,819.64-144,649.23-57,072.12

Finding the Fourth Proportional to 104,819.64, 144,649.23 and 57,072.12

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Solution

The fourth proportional to 104,819.64, 144,649.23 and 57,072.12 is: 78,758.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,819.64 : 144,649.23 = 57,072.12 : x
  2. Step 2: Convert to fraction form
    104,819.64/144,649.23 = 57,072.12/x
  3. Step 3: Cross multiply
    104,819.64x = 144,649.23 × 57,072.12
  4. Step 4: Simplify right side
    104,819.64x = 8,255,438,212.47
  5. Step 5: Solve for x
    x = 8,255,438,212.47/104,819.64
  6. Step 6: Final answer
    x = 78,758.51

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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.