Home / 215,839.65-323,574.87-82,815.38

Finding the Fourth Proportional to 215,839.65, 323,574.87 and 82,815.38

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Solution

The fourth proportional to 215,839.65, 323,574.87 and 82,815.38 is: 124,152.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,839.65 : 323,574.87 = 82,815.38 : x
  2. Step 2: Convert to fraction form
    215,839.65/323,574.87 = 82,815.38/x
  3. Step 3: Cross multiply
    215,839.65x = 323,574.87 × 82,815.38
  4. Step 4: Simplify right side
    215,839.65x = 26,796,974,199.63
  5. Step 5: Solve for x
    x = 26,796,974,199.63/215,839.65
  6. Step 6: Final answer
    x = 124,152.23

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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.