Home / 215,876.07-323,803.17-75,623.76

Finding the Fourth Proportional to 215,876.07, 323,803.17 and 75,623.76

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Solution

The fourth proportional to 215,876.07, 323,803.17 and 75,623.76 is: 113,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,876.07 : 323,803.17 = 75,623.76 : x
  2. Step 2: Convert to fraction form
    215,876.07/323,803.17 = 75,623.76/x
  3. Step 3: Cross multiply
    215,876.07x = 323,803.17 × 75,623.76
  4. Step 4: Simplify right side
    215,876.07x = 24,487,213,215.32
  5. Step 5: Solve for x
    x = 24,487,213,215.32/215,876.07
  6. Step 6: Final answer
    x = 113,431.81

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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.