Home / 229,119.58-343,709.54-85,005.78

Finding the Fourth Proportional to 229,119.58, 343,709.54 and 85,005.78

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Solution

The fourth proportional to 229,119.58, 343,709.54 and 85,005.78 is: 127,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,119.58 : 343,709.54 = 85,005.78 : x
  2. Step 2: Convert to fraction form
    229,119.58/343,709.54 = 85,005.78/x
  3. Step 3: Cross multiply
    229,119.58x = 343,709.54 × 85,005.78
  4. Step 4: Simplify right side
    229,119.58x = 29,217,296,873.58
  5. Step 5: Solve for x
    x = 29,217,296,873.58/229,119.58
  6. Step 6: Final answer
    x = 127,519.86

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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.