Home / 131,163,121.20-196,576,720.20-100,720,081.20

Finding the Fourth Proportional to 131,163,121.20, 196,576,720.20 and 100,720,081.20

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Solution

The fourth proportional to 131,163,121.20, 196,576,720.20 and 100,720,081.20 is: 150,951,144.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,163,121.20 : 196,576,720.20 = 100,720,081.20 : x
  2. Step 2: Convert to fraction form
    131,163,121.20/196,576,720.20 = 100,720,081.20/x
  3. Step 3: Cross multiply
    131,163,121.20x = 196,576,720.20 × 100,720,081.20
  4. Step 4: Simplify right side
    131,163,121.20x = 19,799,223,220,573,680
  5. Step 5: Solve for x
    x = 19,799,223,220,573,680/131,163,121.20
  6. Step 6: Final answer
    x = 150,951,144.19

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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.