Home / 215,810.10-323,752.14-66,046.68

Finding the Fourth Proportional to 215,810.10, 323,752.14 and 66,046.68

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Solution

The fourth proportional to 215,810.10, 323,752.14 and 66,046.68 is: 99,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,810.10 : 323,752.14 = 66,046.68 : x
  2. Step 2: Convert to fraction form
    215,810.10/323,752.14 = 66,046.68/x
  3. Step 3: Cross multiply
    215,810.10x = 323,752.14 × 66,046.68
  4. Step 4: Simplify right side
    215,810.10x = 21,382,753,989.90
  5. Step 5: Solve for x
    x = 21,382,753,989.90/215,810.10
  6. Step 6: Final answer
    x = 99,081.34

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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.