Home / 129,054.39-193,571.99-54,171.51

Finding the Fourth Proportional to 129,054.39, 193,571.99 and 54,171.51

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Solution

The fourth proportional to 129,054.39, 193,571.99 and 54,171.51 is: 81,253.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,054.39 : 193,571.99 = 54,171.51 : x
  2. Step 2: Convert to fraction form
    129,054.39/193,571.99 = 54,171.51/x
  3. Step 3: Cross multiply
    129,054.39x = 193,571.99 × 54,171.51
  4. Step 4: Simplify right side
    129,054.39x = 10,486,086,992.00
  5. Step 5: Solve for x
    x = 10,486,086,992.00/129,054.39
  6. Step 6: Final answer
    x = 81,253.24

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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.