Home / 126,123.13-189,184.02-54,065.43

Finding the Fourth Proportional to 126,123.13, 189,184.02 and 54,065.43

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Solution

The fourth proportional to 126,123.13, 189,184.02 and 54,065.43 is: 81,097.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,123.13 : 189,184.02 = 54,065.43 : x
  2. Step 2: Convert to fraction form
    126,123.13/189,184.02 = 54,065.43/x
  3. Step 3: Cross multiply
    126,123.13x = 189,184.02 × 54,065.43
  4. Step 4: Simplify right side
    126,123.13x = 10,228,315,356.58
  5. Step 5: Solve for x
    x = 10,228,315,356.58/126,123.13
  6. Step 6: Final answer
    x = 81,097.85

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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.