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Finding the Fourth Proportional to 132,142.86, 182,352.87 and 73,999.68

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Solution

The fourth proportional to 132,142.86, 182,352.87 and 73,999.68 is: 102,117.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,142.86 : 182,352.87 = 73,999.68 : x
  2. Step 2: Convert to fraction form
    132,142.86/182,352.87 = 73,999.68/x
  3. Step 3: Cross multiply
    132,142.86x = 182,352.87 × 73,999.68
  4. Step 4: Simplify right side
    132,142.86x = 13,494,054,027.08
  5. Step 5: Solve for x
    x = 13,494,054,027.08/132,142.86
  6. Step 6: Final answer
    x = 102,117.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.