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Finding the Fourth Proportional to 143,975.87, 216,005.30 and 44,150.78

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Solution

The fourth proportional to 143,975.87, 216,005.30 and 44,150.78 is: 66,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,975.87 : 216,005.30 = 44,150.78 : x
  2. Step 2: Convert to fraction form
    143,975.87/216,005.30 = 44,150.78/x
  3. Step 3: Cross multiply
    143,975.87x = 216,005.30 × 44,150.78
  4. Step 4: Simplify right side
    143,975.87x = 9,536,802,963.96
  5. Step 5: Solve for x
    x = 9,536,802,963.96/143,975.87
  6. Step 6: Final answer
    x = 66,238.90

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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.