Home / 126,036.66-189,083.02-54,970.79

Finding the Fourth Proportional to 126,036.66, 189,083.02 and 54,970.79

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Solution

The fourth proportional to 126,036.66, 189,083.02 and 54,970.79 is: 82,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,036.66 : 189,083.02 = 54,970.79 : x
  2. Step 2: Convert to fraction form
    126,036.66/189,083.02 = 54,970.79/x
  3. Step 3: Cross multiply
    126,036.66x = 189,083.02 × 54,970.79
  4. Step 4: Simplify right side
    126,036.66x = 10,394,042,984.99
  5. Step 5: Solve for x
    x = 10,394,042,984.99/126,036.66
  6. Step 6: Final answer
    x = 82,468.41

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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.