Home / 132,965.15-199,281.65-85,453.79

Finding the Fourth Proportional to 132,965.15, 199,281.65 and 85,453.79

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Solution

The fourth proportional to 132,965.15, 199,281.65 and 85,453.79 is: 128,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,965.15 : 199,281.65 = 85,453.79 : x
  2. Step 2: Convert to fraction form
    132,965.15/199,281.65 = 85,453.79/x
  3. Step 3: Cross multiply
    132,965.15x = 199,281.65 × 85,453.79
  4. Step 4: Simplify right side
    132,965.15x = 17,029,372,269.95
  5. Step 5: Solve for x
    x = 17,029,372,269.95/132,965.15
  6. Step 6: Final answer
    x = 128,073.95

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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.