Home / 203,467.10-305,200.65-103,934.30

Finding the Fourth Proportional to 203,467.10, 305,200.65 and 103,934.30

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Solution

The fourth proportional to 203,467.10, 305,200.65 and 103,934.30 is: 155,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,467.10 : 305,200.65 = 103,934.30 : x
  2. Step 2: Convert to fraction form
    203,467.10/305,200.65 = 103,934.30/x
  3. Step 3: Cross multiply
    203,467.10x = 305,200.65 × 103,934.30
  4. Step 4: Simplify right side
    203,467.10x = 31,720,815,917.30
  5. Step 5: Solve for x
    x = 31,720,815,917.30/203,467.10
  6. Step 6: Final answer
    x = 155,901.45

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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.