Home / 136,633.40-203,576.33-128,993.95

Finding the Fourth Proportional to 136,633.40, 203,576.33 and 128,993.95

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Solution

The fourth proportional to 136,633.40, 203,576.33 and 128,993.95 is: 192,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,633.40 : 203,576.33 = 128,993.95 : x
  2. Step 2: Convert to fraction form
    136,633.40/203,576.33 = 128,993.95/x
  3. Step 3: Cross multiply
    136,633.40x = 203,576.33 × 128,993.95
  4. Step 4: Simplify right side
    136,633.40x = 26,260,114,933.20
  5. Step 5: Solve for x
    x = 26,260,114,933.20/136,633.40
  6. Step 6: Final answer
    x = 192,193.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.