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Finding the Fourth Proportional to 146,382.88, 202,008.64 and 79,314.88

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Solution

The fourth proportional to 146,382.88, 202,008.64 and 79,314.88 is: 109,454.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,382.88 : 202,008.64 = 79,314.88 : x
  2. Step 2: Convert to fraction form
    146,382.88/202,008.64 = 79,314.88/x
  3. Step 3: Cross multiply
    146,382.88x = 202,008.64 × 79,314.88
  4. Step 4: Simplify right side
    146,382.88x = 16,022,291,040.56
  5. Step 5: Solve for x
    x = 16,022,291,040.56/146,382.88
  6. Step 6: Final answer
    x = 109,454.68

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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.