Home / 129,186.58-193,736.76-54,292.77

Finding the Fourth Proportional to 129,186.58, 193,736.76 and 54,292.77

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Solution

The fourth proportional to 129,186.58, 193,736.76 and 54,292.77 is: 81,421.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,186.58 : 193,736.76 = 54,292.77 : x
  2. Step 2: Convert to fraction form
    129,186.58/193,736.76 = 54,292.77/x
  3. Step 3: Cross multiply
    129,186.58x = 193,736.76 × 54,292.77
  4. Step 4: Simplify right side
    129,186.58x = 10,518,505,351.23
  5. Step 5: Solve for x
    x = 10,518,505,351.23/129,186.58
  6. Step 6: Final answer
    x = 81,421.04

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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.