Home / 132,006.20-198,009.30-128,118.20

Finding the Fourth Proportional to 132,006.20, 198,009.30 and 128,118.20

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Solution

The fourth proportional to 132,006.20, 198,009.30 and 128,118.20 is: 192,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,006.20 : 198,009.30 = 128,118.20 : x
  2. Step 2: Convert to fraction form
    132,006.20/198,009.30 = 128,118.20/x
  3. Step 3: Cross multiply
    132,006.20x = 198,009.30 × 128,118.20
  4. Step 4: Simplify right side
    132,006.20x = 25,368,595,099.26
  5. Step 5: Solve for x
    x = 25,368,595,099.26/132,006.20
  6. Step 6: Final answer
    x = 192,177.30

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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.