Home / 131,143.12-196,809.45-52,211.86

Finding the Fourth Proportional to 131,143.12, 196,809.45 and 52,211.86

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Solution

The fourth proportional to 131,143.12, 196,809.45 and 52,211.86 is: 78,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,143.12 : 196,809.45 = 52,211.86 : x
  2. Step 2: Convert to fraction form
    131,143.12/196,809.45 = 52,211.86/x
  3. Step 3: Cross multiply
    131,143.12x = 196,809.45 × 52,211.86
  4. Step 4: Simplify right side
    131,143.12x = 10,275,787,450.08
  5. Step 5: Solve for x
    x = 10,275,787,450.08/131,143.12
  6. Step 6: Final answer
    x = 78,355.52

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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.