Home / 204,742.30-307,142.16-71,592.34

Finding the Fourth Proportional to 204,742.30, 307,142.16 and 71,592.34

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Solution

The fourth proportional to 204,742.30, 307,142.16 and 71,592.34 is: 107,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,742.30 : 307,142.16 = 71,592.34 : x
  2. Step 2: Convert to fraction form
    204,742.30/307,142.16 = 71,592.34/x
  3. Step 3: Cross multiply
    204,742.30x = 307,142.16 × 71,592.34
  4. Step 4: Simplify right side
    204,742.30x = 21,989,025,947.05
  5. Step 5: Solve for x
    x = 21,989,025,947.05/204,742.30
  6. Step 6: Final answer
    x = 107,398.55

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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.