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Finding the Fourth Proportional to 143,295.91, 214,945.93 and 54,554.28

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Solution

The fourth proportional to 143,295.91, 214,945.93 and 54,554.28 is: 81,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,295.91 : 214,945.93 = 54,554.28 : x
  2. Step 2: Convert to fraction form
    143,295.91/214,945.93 = 54,554.28/x
  3. Step 3: Cross multiply
    143,295.91x = 214,945.93 × 54,554.28
  4. Step 4: Simplify right side
    143,295.91x = 11,726,221,372.40
  5. Step 5: Solve for x
    x = 11,726,221,372.40/143,295.91
  6. Step 6: Final answer
    x = 81,832.21

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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.