Home / 126,235.02-189,246.51-55,103.54

Finding the Fourth Proportional to 126,235.02, 189,246.51 and 55,103.54

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Solution

The fourth proportional to 126,235.02, 189,246.51 and 55,103.54 is: 82,609.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,235.02 : 189,246.51 = 55,103.54 : x
  2. Step 2: Convert to fraction form
    126,235.02/189,246.51 = 55,103.54/x
  3. Step 3: Cross multiply
    126,235.02x = 189,246.51 × 55,103.54
  4. Step 4: Simplify right side
    126,235.02x = 10,428,151,992.85
  5. Step 5: Solve for x
    x = 10,428,151,992.85/126,235.02
  6. Step 6: Final answer
    x = 82,609.03

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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.