Home / 208,784.18-313,147.11-88,889.20

Finding the Fourth Proportional to 208,784.18, 313,147.11 and 88,889.20

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Solution

The fourth proportional to 208,784.18, 313,147.11 and 88,889.20 is: 133,321.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,784.18 : 313,147.11 = 88,889.20 : x
  2. Step 2: Convert to fraction form
    208,784.18/313,147.11 = 88,889.20/x
  3. Step 3: Cross multiply
    208,784.18x = 313,147.11 × 88,889.20
  4. Step 4: Simplify right side
    208,784.18x = 27,835,396,090.21
  5. Step 5: Solve for x
    x = 27,835,396,090.21/208,784.18
  6. Step 6: Final answer
    x = 133,321.39

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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.