Home / 126,400.91-189,629.61-47,515.82

Finding the Fourth Proportional to 126,400.91, 189,629.61 and 47,515.82

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Solution

The fourth proportional to 126,400.91, 189,629.61 and 47,515.82 is: 71,284.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,400.91 : 189,629.61 = 47,515.82 : x
  2. Step 2: Convert to fraction form
    126,400.91/189,629.61 = 47,515.82/x
  3. Step 3: Cross multiply
    126,400.91x = 189,629.61 × 47,515.82
  4. Step 4: Simplify right side
    126,400.91x = 9,010,405,289.10
  5. Step 5: Solve for x
    x = 9,010,405,289.10/126,400.91
  6. Step 6: Final answer
    x = 71,284.34

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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.