Home / 126,162.36-189,029.32-76,137.35

Finding the Fourth Proportional to 126,162.36, 189,029.32 and 76,137.35

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Solution

The fourth proportional to 126,162.36, 189,029.32 and 76,137.35 is: 114,076.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,162.36 : 189,029.32 = 76,137.35 : x
  2. Step 2: Convert to fraction form
    126,162.36/189,029.32 = 76,137.35/x
  3. Step 3: Cross multiply
    126,162.36x = 189,029.32 × 76,137.35
  4. Step 4: Simplify right side
    126,162.36x = 14,392,191,497.10
  5. Step 5: Solve for x
    x = 14,392,191,497.10/126,162.36
  6. Step 6: Final answer
    x = 114,076.75

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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.