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Finding the Fourth Proportional to 119,285.78, 164,614.72 and 68,299.30

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Solution

The fourth proportional to 119,285.78, 164,614.72 and 68,299.30 is: 94,253.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,285.78 : 164,614.72 = 68,299.30 : x
  2. Step 2: Convert to fraction form
    119,285.78/164,614.72 = 68,299.30/x
  3. Step 3: Cross multiply
    119,285.78x = 164,614.72 × 68,299.30
  4. Step 4: Simplify right side
    119,285.78x = 11,243,070,145.70
  5. Step 5: Solve for x
    x = 11,243,070,145.70/119,285.78
  6. Step 6: Final answer
    x = 94,253.23

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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.