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Finding the Fourth Proportional to 132,901.86, 199,028.94 and 87,895.80

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Solution

The fourth proportional to 132,901.86, 199,028.94 and 87,895.80 is: 131,629.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,901.86 : 199,028.94 = 87,895.80 : x
  2. Step 2: Convert to fraction form
    132,901.86/199,028.94 = 87,895.80/x
  3. Step 3: Cross multiply
    132,901.86x = 199,028.94 × 87,895.80
  4. Step 4: Simplify right side
    132,901.86x = 17,493,807,904.45
  5. Step 5: Solve for x
    x = 17,493,807,904.45/132,901.86
  6. Step 6: Final answer
    x = 131,629.52

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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.