Home / 215,637.64-323,441.10-80,676.04

Finding the Fourth Proportional to 215,637.64, 323,441.10 and 80,676.04

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Solution

The fourth proportional to 215,637.64, 323,441.10 and 80,676.04 is: 121,008.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,637.64 : 323,441.10 = 80,676.04 : x
  2. Step 2: Convert to fraction form
    215,637.64/323,441.10 = 80,676.04/x
  3. Step 3: Cross multiply
    215,637.64x = 323,441.10 × 80,676.04
  4. Step 4: Simplify right side
    215,637.64x = 26,093,947,121.24
  5. Step 5: Solve for x
    x = 26,093,947,121.24/215,637.64
  6. Step 6: Final answer
    x = 121,008.31

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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.