Home / 154,179.96-231,241.64-69,919.86

Finding the Fourth Proportional to 154,179.96, 231,241.64 and 69,919.86

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Solution

The fourth proportional to 154,179.96, 231,241.64 and 69,919.86 is: 104,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,179.96 : 231,241.64 = 69,919.86 : x
  2. Step 2: Convert to fraction form
    154,179.96/231,241.64 = 69,919.86/x
  3. Step 3: Cross multiply
    154,179.96x = 231,241.64 × 69,919.86
  4. Step 4: Simplify right side
    154,179.96x = 16,168,382,311.79
  5. Step 5: Solve for x
    x = 16,168,382,311.79/154,179.96
  6. Step 6: Final answer
    x = 104,866.95

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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.