Home / 128,766.80-193,137.24-35,286.32

Finding the Fourth Proportional to 128,766.80, 193,137.24 and 35,286.32

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Solution

The fourth proportional to 128,766.80, 193,137.24 and 35,286.32 is: 52,925.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,766.80 : 193,137.24 = 35,286.32 : x
  2. Step 2: Convert to fraction form
    128,766.80/193,137.24 = 35,286.32/x
  3. Step 3: Cross multiply
    128,766.80x = 193,137.24 × 35,286.32
  4. Step 4: Simplify right side
    128,766.80x = 6,815,102,454.56
  5. Step 5: Solve for x
    x = 6,815,102,454.56/128,766.80
  6. Step 6: Final answer
    x = 52,925.93

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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.