Home / 235,715.92-353,540.64-123,359.20

Finding the Fourth Proportional to 235,715.92, 353,540.64 and 123,359.20

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Solution

The fourth proportional to 235,715.92, 353,540.64 and 123,359.20 is: 185,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,715.92 : 353,540.64 = 123,359.20 : x
  2. Step 2: Convert to fraction form
    235,715.92/353,540.64 = 123,359.20/x
  3. Step 3: Cross multiply
    235,715.92x = 353,540.64 × 123,359.20
  4. Step 4: Simplify right side
    235,715.92x = 43,612,490,517.89
  5. Step 5: Solve for x
    x = 43,612,490,517.89/235,715.92
  6. Step 6: Final answer
    x = 185,021.40

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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.