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Finding the Fourth Proportional to 146,772, 202,545.36 and 79,704

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Solution

The fourth proportional to 146,772, 202,545.36 and 79,704 is: 109,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,772 : 202,545.36 = 79,704 : x
  2. Step 2: Convert to fraction form
    146,772/202,545.36 = 79,704/x
  3. Step 3: Cross multiply
    146,772x = 202,545.36 × 79,704
  4. Step 4: Simplify right side
    146,772x = 16,143,675,373.44
  5. Step 5: Solve for x
    x = 16,143,675,373.44/146,772
  6. Step 6: Final answer
    x = 109,991.52

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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.