Home / 211,879.40-317,818.14-71,734.76

Finding the Fourth Proportional to 211,879.40, 317,818.14 and 71,734.76

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Solution

The fourth proportional to 211,879.40, 317,818.14 and 71,734.76 is: 107,601.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,879.40 : 317,818.14 = 71,734.76 : x
  2. Step 2: Convert to fraction form
    211,879.40/317,818.14 = 71,734.76/x
  3. Step 3: Cross multiply
    211,879.40x = 317,818.14 × 71,734.76
  4. Step 4: Simplify right side
    211,879.40x = 22,798,607,996.55
  5. Step 5: Solve for x
    x = 22,798,607,996.55/211,879.40
  6. Step 6: Final answer
    x = 107,601.81

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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.