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Finding the Fourth Proportional to 146,872, 202,683.92 and 79,804

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Solution

The fourth proportional to 146,872, 202,683.92 and 79,804 is: 110,129.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,872 : 202,683.92 = 79,804 : x
  2. Step 2: Convert to fraction form
    146,872/202,683.92 = 79,804/x
  3. Step 3: Cross multiply
    146,872x = 202,683.92 × 79,804
  4. Step 4: Simplify right side
    146,872x = 16,174,987,551.68
  5. Step 5: Solve for x
    x = 16,174,987,551.68/146,872
  6. Step 6: Final answer
    x = 110,129.82

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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.