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Finding the Fourth Proportional to 132,745.84, 198,858.02 and 87,629.74

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Solution

The fourth proportional to 132,745.84, 198,858.02 and 87,629.74 is: 131,272.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,745.84 : 198,858.02 = 87,629.74 : x
  2. Step 2: Convert to fraction form
    132,745.84/198,858.02 = 87,629.74/x
  3. Step 3: Cross multiply
    132,745.84x = 198,858.02 × 87,629.74
  4. Step 4: Simplify right side
    132,745.84x = 17,425,876,589.51
  5. Step 5: Solve for x
    x = 17,425,876,589.51/132,745.84
  6. Step 6: Final answer
    x = 131,272.49

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1.5x scale

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.