Home / 140,912.58-211,235.20-52,105.80

Finding the Fourth Proportional to 140,912.58, 211,235.20 and 52,105.80

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Solution

The fourth proportional to 140,912.58, 211,235.20 and 52,105.80 is: 78,109.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,912.58 : 211,235.20 = 52,105.80 : x
  2. Step 2: Convert to fraction form
    140,912.58/211,235.20 = 52,105.80/x
  3. Step 3: Cross multiply
    140,912.58x = 211,235.20 × 52,105.80
  4. Step 4: Simplify right side
    140,912.58x = 11,006,579,084.16
  5. Step 5: Solve for x
    x = 11,006,579,084.16/140,912.58
  6. Step 6: Final answer
    x = 78,109.27

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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.