Home / 140,721.22-211,105.32-51,974.92

Finding the Fourth Proportional to 140,721.22, 211,105.32 and 51,974.92

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Solution

The fourth proportional to 140,721.22, 211,105.32 and 51,974.92 is: 77,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,721.22 : 211,105.32 = 51,974.92 : x
  2. Step 2: Convert to fraction form
    140,721.22/211,105.32 = 51,974.92/x
  3. Step 3: Cross multiply
    140,721.22x = 211,105.32 × 51,974.92
  4. Step 4: Simplify right side
    140,721.22x = 10,972,182,118.57
  5. Step 5: Solve for x
    x = 10,972,182,118.57/140,721.22
  6. Step 6: Final answer
    x = 77,971.06

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1.5x scale

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.