Home / 140,221.82-210,207.69-51,454.73

Finding the Fourth Proportional to 140,221.82, 210,207.69 and 51,454.73

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Solution

The fourth proportional to 140,221.82, 210,207.69 and 51,454.73 is: 77,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,221.82 : 210,207.69 = 51,454.73 : x
  2. Step 2: Convert to fraction form
    140,221.82/210,207.69 = 51,454.73/x
  3. Step 3: Cross multiply
    140,221.82x = 210,207.69 × 51,454.73
  4. Step 4: Simplify right side
    140,221.82x = 10,816,180,458.39
  5. Step 5: Solve for x
    x = 10,816,180,458.39/140,221.82
  6. Step 6: Final answer
    x = 77,136.21

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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.