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Finding the Fourth Proportional to 143,332.86, 214,999.76 and 43,493.88

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Solution

The fourth proportional to 143,332.86, 214,999.76 and 43,493.88 is: 65,240.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,332.86 : 214,999.76 = 43,493.88 : x
  2. Step 2: Convert to fraction form
    143,332.86/214,999.76 = 43,493.88/x
  3. Step 3: Cross multiply
    143,332.86x = 214,999.76 × 43,493.88
  4. Step 4: Simplify right side
    143,332.86x = 9,351,173,761.47
  5. Step 5: Solve for x
    x = 9,351,173,761.47/143,332.86
  6. Step 6: Final answer
    x = 65,240.96

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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.