Home / 131,140.62-196,805.70-52,209.36

Finding the Fourth Proportional to 131,140.62, 196,805.70 and 52,209.36

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Solution

The fourth proportional to 131,140.62, 196,805.70 and 52,209.36 is: 78,351.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,140.62 : 196,805.70 = 52,209.36 : x
  2. Step 2: Convert to fraction form
    131,140.62/196,805.70 = 52,209.36/x
  3. Step 3: Cross multiply
    131,140.62x = 196,805.70 × 52,209.36
  4. Step 4: Simplify right side
    131,140.62x = 10,275,099,641.35
  5. Step 5: Solve for x
    x = 10,275,099,641.35/131,140.62
  6. Step 6: Final answer
    x = 78,351.77

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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.