Home / 129,097.14-192,348.17-121,845.47

Finding the Fourth Proportional to 129,097.14, 192,348.17 and 121,845.47

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Solution

The fourth proportional to 129,097.14, 192,348.17 and 121,845.47 is: 181,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,097.14 : 192,348.17 = 121,845.47 : x
  2. Step 2: Convert to fraction form
    129,097.14/192,348.17 = 121,845.47/x
  3. Step 3: Cross multiply
    129,097.14x = 192,348.17 × 121,845.47
  4. Step 4: Simplify right side
    129,097.14x = 23,436,751,606.32
  5. Step 5: Solve for x
    x = 23,436,751,606.32/129,097.14
  6. Step 6: Final answer
    x = 181,543.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.