Home / 136,690.92-205,035.12-43,196.70

Finding the Fourth Proportional to 136,690.92, 205,035.12 and 43,196.70

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Solution

The fourth proportional to 136,690.92, 205,035.12 and 43,196.70 is: 64,794.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,690.92 : 205,035.12 = 43,196.70 : x
  2. Step 2: Convert to fraction form
    136,690.92/205,035.12 = 43,196.70/x
  3. Step 3: Cross multiply
    136,690.92x = 205,035.12 × 43,196.70
  4. Step 4: Simplify right side
    136,690.92x = 8,856,840,568.10
  5. Step 5: Solve for x
    x = 8,856,840,568.10/136,690.92
  6. Step 6: Final answer
    x = 64,794.65

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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.