Home / 131,381.28-197,074.88-47,147.04

Finding the Fourth Proportional to 131,381.28, 197,074.88 and 47,147.04

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Solution

The fourth proportional to 131,381.28, 197,074.88 and 47,147.04 is: 70,721.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,381.28 : 197,074.88 = 47,147.04 : x
  2. Step 2: Convert to fraction form
    131,381.28/197,074.88 = 47,147.04/x
  3. Step 3: Cross multiply
    131,381.28x = 197,074.88 × 47,147.04
  4. Step 4: Simplify right side
    131,381.28x = 9,291,497,250.36
  5. Step 5: Solve for x
    x = 9,291,497,250.36/131,381.28
  6. Step 6: Final answer
    x = 70,721.62

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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.