Home / 215,934.63-323,949.33-66,186.20

Finding the Fourth Proportional to 215,934.63, 323,949.33 and 66,186.20

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Solution

The fourth proportional to 215,934.63, 323,949.33 and 66,186.20 is: 99,293.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,934.63 : 323,949.33 = 66,186.20 : x
  2. Step 2: Convert to fraction form
    215,934.63/323,949.33 = 66,186.20/x
  3. Step 3: Cross multiply
    215,934.63x = 323,949.33 × 66,186.20
  4. Step 4: Simplify right side
    215,934.63x = 21,440,973,525.50
  5. Step 5: Solve for x
    x = 21,440,973,525.50/215,934.63
  6. Step 6: Final answer
    x = 99,293.82

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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.