Home / 126,427.89-189,669.55-47,542.09

Finding the Fourth Proportional to 126,427.89, 189,669.55 and 47,542.09

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Solution

The fourth proportional to 126,427.89, 189,669.55 and 47,542.09 is: 71,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,427.89 : 189,669.55 = 47,542.09 : x
  2. Step 2: Convert to fraction form
    126,427.89/189,669.55 = 47,542.09/x
  3. Step 3: Cross multiply
    126,427.89x = 189,669.55 × 47,542.09
  4. Step 4: Simplify right side
    126,427.89x = 9,017,286,668.10
  5. Step 5: Solve for x
    x = 9,017,286,668.10/126,427.89
  6. Step 6: Final answer
    x = 71,323.56

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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.