Home / 129,053.39-193,570.49-54,170.51

Finding the Fourth Proportional to 129,053.39, 193,570.49 and 54,170.51

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Solution

The fourth proportional to 129,053.39, 193,570.49 and 54,170.51 is: 81,251.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,053.39 : 193,570.49 = 54,170.51 : x
  2. Step 2: Convert to fraction form
    129,053.39/193,570.49 = 54,170.51/x
  3. Step 3: Cross multiply
    129,053.39x = 193,570.49 × 54,170.51
  4. Step 4: Simplify right side
    129,053.39x = 10,485,811,331.82
  5. Step 5: Solve for x
    x = 10,485,811,331.82/129,053.39
  6. Step 6: Final answer
    x = 81,251.73

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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.