Home / 126,504.08-189,362.44-79,658.56

Finding the Fourth Proportional to 126,504.08, 189,362.44 and 79,658.56

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Solution

The fourth proportional to 126,504.08, 189,362.44 and 79,658.56 is: 119,239.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,504.08 : 189,362.44 = 79,658.56 : x
  2. Step 2: Convert to fraction form
    126,504.08/189,362.44 = 79,658.56/x
  3. Step 3: Cross multiply
    126,504.08x = 189,362.44 × 79,658.56
  4. Step 4: Simplify right side
    126,504.08x = 15,084,339,288.49
  5. Step 5: Solve for x
    x = 15,084,339,288.49/126,504.08
  6. Step 6: Final answer
    x = 119,239.94

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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.