Home / 126,499.08-189,354.96-79,653.54

Finding the Fourth Proportional to 126,499.08, 189,354.96 and 79,653.54

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Solution

The fourth proportional to 126,499.08, 189,354.96 and 79,653.54 is: 119,232.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,499.08 : 189,354.96 = 79,653.54 : x
  2. Step 2: Convert to fraction form
    126,499.08/189,354.96 = 79,653.54/x
  3. Step 3: Cross multiply
    126,499.08x = 189,354.96 × 79,653.54
  4. Step 4: Simplify right side
    126,499.08x = 15,082,792,880.56
  5. Step 5: Solve for x
    x = 15,082,792,880.56/126,499.08
  6. Step 6: Final answer
    x = 119,232.43

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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.