Home / 133,078.38-199,649.04-43,120.95

Finding the Fourth Proportional to 133,078.38, 199,649.04 and 43,120.95

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Solution

The fourth proportional to 133,078.38, 199,649.04 and 43,120.95 is: 64,691.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,078.38 : 199,649.04 = 43,120.95 : x
  2. Step 2: Convert to fraction form
    133,078.38/199,649.04 = 43,120.95/x
  3. Step 3: Cross multiply
    133,078.38x = 199,649.04 × 43,120.95
  4. Step 4: Simplify right side
    133,078.38x = 8,609,056,271.39
  5. Step 5: Solve for x
    x = 8,609,056,271.39/133,078.38
  6. Step 6: Final answer
    x = 64,691.62

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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.