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Finding the Fourth Proportional to 146,641.31, 202,364.30 and 79,573.31

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Solution

The fourth proportional to 146,641.31, 202,364.30 and 79,573.31 is: 109,810.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,641.31 : 202,364.30 = 79,573.31 : x
  2. Step 2: Convert to fraction form
    146,641.31/202,364.30 = 79,573.31/x
  3. Step 3: Cross multiply
    146,641.31x = 202,364.30 × 79,573.31
  4. Step 4: Simplify right side
    146,641.31x = 16,102,796,778.97
  5. Step 5: Solve for x
    x = 16,102,796,778.97/146,641.31
  6. Step 6: Final answer
    x = 109,810.78

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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.