Home / 144,705.17-217,131.78-68,889.38

Finding the Fourth Proportional to 144,705.17, 217,131.78 and 68,889.38

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Solution

The fourth proportional to 144,705.17, 217,131.78 and 68,889.38 is: 103,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,705.17 : 217,131.78 = 68,889.38 : x
  2. Step 2: Convert to fraction form
    144,705.17/217,131.78 = 68,889.38/x
  3. Step 3: Cross multiply
    144,705.17x = 217,131.78 × 68,889.38
  4. Step 4: Simplify right side
    144,705.17x = 14,958,072,272.39
  5. Step 5: Solve for x
    x = 14,958,072,272.39/144,705.17
  6. Step 6: Final answer
    x = 103,369.30

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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.