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Finding the Fourth Proportional to 146,379.66, 201,992.67 and 89,011.11

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Solution

The fourth proportional to 146,379.66, 201,992.67 and 89,011.11 is: 122,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,379.66 : 201,992.67 = 89,011.11 : x
  2. Step 2: Convert to fraction form
    146,379.66/201,992.67 = 89,011.11/x
  3. Step 3: Cross multiply
    146,379.66x = 201,992.67 × 89,011.11
  4. Step 4: Simplify right side
    146,379.66x = 17,979,591,768.56
  5. Step 5: Solve for x
    x = 17,979,591,768.56/146,379.66
  6. Step 6: Final answer
    x = 122,828.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.