Home / 131,217.15-196,856.97-42,470.67

Finding the Fourth Proportional to 131,217.15, 196,856.97 and 42,470.67

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Solution

The fourth proportional to 131,217.15, 196,856.97 and 42,470.67 is: 63,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,217.15 : 196,856.97 = 42,470.67 : x
  2. Step 2: Convert to fraction form
    131,217.15/196,856.97 = 42,470.67/x
  3. Step 3: Cross multiply
    131,217.15x = 196,856.97 × 42,470.67
  4. Step 4: Simplify right side
    131,217.15x = 8,360,647,410.07
  5. Step 5: Solve for x
    x = 8,360,647,410.07/131,217.15
  6. Step 6: Final answer
    x = 63,716.12

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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.