Home / 104,919.06-144,786.42-57,172.80

Finding the Fourth Proportional to 104,919.06, 144,786.42 and 57,172.80

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Solution

The fourth proportional to 104,919.06, 144,786.42 and 57,172.80 is: 78,897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,919.06 : 144,786.42 = 57,172.80 : x
  2. Step 2: Convert to fraction form
    104,919.06/144,786.42 = 57,172.80/x
  3. Step 3: Cross multiply
    104,919.06x = 144,786.42 × 57,172.80
  4. Step 4: Simplify right side
    104,919.06x = 8,277,845,033.38
  5. Step 5: Solve for x
    x = 8,277,845,033.38/104,919.06
  6. Step 6: Final answer
    x = 78,897.44

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1.5x scale

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.