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Finding the Fourth Proportional to 145,196.80, 217,663.68 and 100,844.48

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Solution

The fourth proportional to 145,196.80, 217,663.68 and 100,844.48 is: 151,175.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,196.80 : 217,663.68 = 100,844.48 : x
  2. Step 2: Convert to fraction form
    145,196.80/217,663.68 = 100,844.48/x
  3. Step 3: Cross multiply
    145,196.80x = 217,663.68 × 100,844.48
  4. Step 4: Simplify right side
    145,196.80x = 21,950,180,624.49
  5. Step 5: Solve for x
    x = 21,950,180,624.49/145,196.80
  6. Step 6: Final answer
    x = 151,175.37

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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.