Home / 141,121.90-211,627.69-51,143.26

Finding the Fourth Proportional to 141,121.90, 211,627.69 and 51,143.26

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Solution

The fourth proportional to 141,121.90, 211,627.69 and 51,143.26 is: 76,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,121.90 : 211,627.69 = 51,143.26 : x
  2. Step 2: Convert to fraction form
    141,121.90/211,627.69 = 51,143.26/x
  3. Step 3: Cross multiply
    141,121.90x = 211,627.69 × 51,143.26
  4. Step 4: Simplify right side
    141,121.90x = 10,823,329,972.87
  5. Step 5: Solve for x
    x = 10,823,329,972.87/141,121.90
  6. Step 6: Final answer
    x = 76,694.90

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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.