Home / 126,406.58-189,589.11-42,167.39

Finding the Fourth Proportional to 126,406.58, 189,589.11 and 42,167.39

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Solution

The fourth proportional to 126,406.58, 189,589.11 and 42,167.39 is: 63,244.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,406.58 : 189,589.11 = 42,167.39 : x
  2. Step 2: Convert to fraction form
    126,406.58/189,589.11 = 42,167.39/x
  3. Step 3: Cross multiply
    126,406.58x = 189,589.11 × 42,167.39
  4. Step 4: Simplify right side
    126,406.58x = 7,994,476,835.05
  5. Step 5: Solve for x
    x = 7,994,476,835.05/126,406.58
  6. Step 6: Final answer
    x = 63,244.15

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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.