Home / 141,021.40-211,532.10-131,179.90

Finding the Fourth Proportional to 141,021.40, 211,532.10 and 131,179.90

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Solution

The fourth proportional to 141,021.40, 211,532.10 and 131,179.90 is: 196,769.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,021.40 : 211,532.10 = 131,179.90 : x
  2. Step 2: Convert to fraction form
    141,021.40/211,532.10 = 131,179.90/x
  3. Step 3: Cross multiply
    141,021.40x = 211,532.10 × 131,179.90
  4. Step 4: Simplify right side
    141,021.40x = 27,748,759,724.79
  5. Step 5: Solve for x
    x = 27,748,759,724.79/141,021.40
  6. Step 6: Final answer
    x = 196,769.85

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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.