Home / 215,916.80-323,864.94-75,664.76

Finding the Fourth Proportional to 215,916.80, 323,864.94 and 75,664.76

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Solution

The fourth proportional to 215,916.80, 323,864.94 and 75,664.76 is: 113,493.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,916.80 : 323,864.94 = 75,664.76 : x
  2. Step 2: Convert to fraction form
    215,916.80/323,864.94 = 75,664.76/x
  3. Step 3: Cross multiply
    215,916.80x = 323,864.94 × 75,664.76
  4. Step 4: Simplify right side
    215,916.80x = 24,505,162,957.51
  5. Step 5: Solve for x
    x = 24,505,162,957.51/215,916.80
  6. Step 6: Final answer
    x = 113,493.54

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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.