Home / 132,043.30-198,084.39-85,503.94

Finding the Fourth Proportional to 132,043.30, 198,084.39 and 85,503.94

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Solution

The fourth proportional to 132,043.30, 198,084.39 and 85,503.94 is: 128,268.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,043.30 : 198,084.39 = 85,503.94 : x
  2. Step 2: Convert to fraction form
    132,043.30/198,084.39 = 85,503.94/x
  3. Step 3: Cross multiply
    132,043.30x = 198,084.39 × 85,503.94
  4. Step 4: Simplify right side
    132,043.30x = 16,936,995,797.50
  5. Step 5: Solve for x
    x = 16,936,995,797.50/132,043.30
  6. Step 6: Final answer
    x = 128,268.50

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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.