Home / 215,044.91-322,365.89-72,790.65

Finding the Fourth Proportional to 215,044.91, 322,365.89 and 72,790.65

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Solution

The fourth proportional to 215,044.91, 322,365.89 and 72,790.65 is: 109,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,044.91 : 322,365.89 = 72,790.65 : x
  2. Step 2: Convert to fraction form
    215,044.91/322,365.89 = 72,790.65/x
  3. Step 3: Cross multiply
    215,044.91x = 322,365.89 × 72,790.65
  4. Step 4: Simplify right side
    215,044.91x = 23,465,222,852.91
  5. Step 5: Solve for x
    x = 23,465,222,852.91/215,044.91
  6. Step 6: Final answer
    x = 109,117.78

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1.5x scale

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.