Home / 140,800.68-211,115.87-55,309.20

Finding the Fourth Proportional to 140,800.68, 211,115.87 and 55,309.20

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Solution

The fourth proportional to 140,800.68, 211,115.87 and 55,309.20 is: 82,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,800.68 : 211,115.87 = 55,309.20 : x
  2. Step 2: Convert to fraction form
    140,800.68/211,115.87 = 55,309.20/x
  3. Step 3: Cross multiply
    140,800.68x = 211,115.87 × 55,309.20
  4. Step 4: Simplify right side
    140,800.68x = 11,676,649,600.46
  5. Step 5: Solve for x
    x = 11,676,649,600.46/140,800.68
  6. Step 6: Final answer
    x = 82,930.35

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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.