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Finding the Fourth Proportional to 142,999.97, 214,367.47 and 52,992.56

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Solution

The fourth proportional to 142,999.97, 214,367.47 and 52,992.56 is: 79,439.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,999.97 : 214,367.47 = 52,992.56 : x
  2. Step 2: Convert to fraction form
    142,999.97/214,367.47 = 52,992.56/x
  3. Step 3: Cross multiply
    142,999.97x = 214,367.47 × 52,992.56
  4. Step 4: Simplify right side
    142,999.97x = 11,359,881,419.46
  5. Step 5: Solve for x
    x = 11,359,881,419.46/142,999.97
  6. Step 6: Final answer
    x = 79,439.75

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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.