Home / 134,245.11-201,357.10-78,049.38

Finding the Fourth Proportional to 134,245.11, 201,357.10 and 78,049.38

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Solution

The fourth proportional to 134,245.11, 201,357.10 and 78,049.38 is: 117,067.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,245.11 : 201,357.10 = 78,049.38 : x
  2. Step 2: Convert to fraction form
    134,245.11/201,357.10 = 78,049.38/x
  3. Step 3: Cross multiply
    134,245.11x = 201,357.10 × 78,049.38
  4. Step 4: Simplify right side
    134,245.11x = 15,715,796,813.60
  5. Step 5: Solve for x
    x = 15,715,796,813.60/134,245.11
  6. Step 6: Final answer
    x = 117,067.93

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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.