Home / 143,455.20-215,207.37-43,625.31

Finding the Fourth Proportional to 143,455.20, 215,207.37 and 43,625.31

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Solution

The fourth proportional to 143,455.20, 215,207.37 and 43,625.31 is: 65,445.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,455.20 : 215,207.37 = 43,625.31 : x
  2. Step 2: Convert to fraction form
    143,455.20/215,207.37 = 43,625.31/x
  3. Step 3: Cross multiply
    143,455.20x = 215,207.37 × 43,625.31
  4. Step 4: Simplify right side
    143,455.20x = 9,388,488,230.53
  5. Step 5: Solve for x
    x = 9,388,488,230.53/143,455.20
  6. Step 6: Final answer
    x = 65,445.44

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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.