Home / 215,680.65-323,664.93-75,439.26

Finding the Fourth Proportional to 215,680.65, 323,664.93 and 75,439.26

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Solution

The fourth proportional to 215,680.65, 323,664.93 and 75,439.26 is: 113,209.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,680.65 : 323,664.93 = 75,439.26 : x
  2. Step 2: Convert to fraction form
    215,680.65/323,664.93 = 75,439.26/x
  3. Step 3: Cross multiply
    215,680.65x = 323,664.93 × 75,439.26
  4. Step 4: Simplify right side
    215,680.65x = 24,417,042,807.15
  5. Step 5: Solve for x
    x = 24,417,042,807.15/215,680.65
  6. Step 6: Final answer
    x = 113,209.24

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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.