Home / 271,789.11-407,703.71-72,105.08

Finding the Fourth Proportional to 271,789.11, 407,703.71 and 72,105.08

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Solution

The fourth proportional to 271,789.11, 407,703.71 and 72,105.08 is: 108,162.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,789.11 : 407,703.71 = 72,105.08 : x
  2. Step 2: Convert to fraction form
    271,789.11/407,703.71 = 72,105.08/x
  3. Step 3: Cross multiply
    271,789.11x = 407,703.71 × 72,105.08
  4. Step 4: Simplify right side
    271,789.11x = 29,397,506,226.80
  5. Step 5: Solve for x
    x = 29,397,506,226.80/271,789.11
  6. Step 6: Final answer
    x = 108,162.93

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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.