Home / 126,467.86-189,716.37-42,239.20

Finding the Fourth Proportional to 126,467.86, 189,716.37 and 42,239.20

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Solution

The fourth proportional to 126,467.86, 189,716.37 and 42,239.20 is: 63,363.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,467.86 : 189,716.37 = 42,239.20 : x
  2. Step 2: Convert to fraction form
    126,467.86/189,716.37 = 42,239.20/x
  3. Step 3: Cross multiply
    126,467.86x = 189,716.37 × 42,239.20
  4. Step 4: Simplify right side
    126,467.86x = 8,013,467,695.70
  5. Step 5: Solve for x
    x = 8,013,467,695.70/126,467.86
  6. Step 6: Final answer
    x = 63,363.67

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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.