Home / 215,872.64-323,612.94-75,554.72

Finding the Fourth Proportional to 215,872.64, 323,612.94 and 75,554.72

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Solution

The fourth proportional to 215,872.64, 323,612.94 and 75,554.72 is: 113,263.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,872.64 : 323,612.94 = 75,554.72 : x
  2. Step 2: Convert to fraction form
    215,872.64/323,612.94 = 75,554.72/x
  3. Step 3: Cross multiply
    215,872.64x = 323,612.94 × 75,554.72
  4. Step 4: Simplify right side
    215,872.64x = 24,450,485,070.08
  5. Step 5: Solve for x
    x = 24,450,485,070.08/215,872.64
  6. Step 6: Final answer
    x = 113,263.47

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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.