Home / 143,313.24-215,000.78-43,481.47

Finding the Fourth Proportional to 143,313.24, 215,000.78 and 43,481.47

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Solution

The fourth proportional to 143,313.24, 215,000.78 and 43,481.47 is: 65,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,313.24 : 215,000.78 = 43,481.47 : x
  2. Step 2: Convert to fraction form
    143,313.24/215,000.78 = 43,481.47/x
  3. Step 3: Cross multiply
    143,313.24x = 215,000.78 × 43,481.47
  4. Step 4: Simplify right side
    143,313.24x = 9,348,549,965.55
  5. Step 5: Solve for x
    x = 9,348,549,965.55/143,313.24
  6. Step 6: Final answer
    x = 65,231.59

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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.