Home / 139,286.35-208,959.50-43,221.66

Finding the Fourth Proportional to 139,286.35, 208,959.50 and 43,221.66

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Solution

The fourth proportional to 139,286.35, 208,959.50 and 43,221.66 is: 64,841.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,286.35 : 208,959.50 = 43,221.66 : x
  2. Step 2: Convert to fraction form
    139,286.35/208,959.50 = 43,221.66/x
  3. Step 3: Cross multiply
    139,286.35x = 208,959.50 × 43,221.66
  4. Step 4: Simplify right side
    139,286.35x = 9,031,576,462.77
  5. Step 5: Solve for x
    x = 9,031,576,462.77/139,286.35
  6. Step 6: Final answer
    x = 64,841.79

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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.