Home / 143,515.52-215,273.46-68,618.06

Finding the Fourth Proportional to 143,515.52, 215,273.46 and 68,618.06

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Solution

The fourth proportional to 143,515.52, 215,273.46 and 68,618.06 is: 102,927.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,515.52 : 215,273.46 = 68,618.06 : x
  2. Step 2: Convert to fraction form
    143,515.52/215,273.46 = 68,618.06/x
  3. Step 3: Cross multiply
    143,515.52x = 215,273.46 × 68,618.06
  4. Step 4: Simplify right side
    143,515.52x = 14,771,647,194.69
  5. Step 5: Solve for x
    x = 14,771,647,194.69/143,515.52
  6. Step 6: Final answer
    x = 102,927.18

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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.