Home / 105,286.29-145,305.10-57,546.82

Finding the Fourth Proportional to 105,286.29, 145,305.10 and 57,546.82

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Solution

The fourth proportional to 105,286.29, 145,305.10 and 57,546.82 is: 79,420.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,286.29 : 145,305.10 = 57,546.82 : x
  2. Step 2: Convert to fraction form
    105,286.29/145,305.10 = 57,546.82/x
  3. Step 3: Cross multiply
    105,286.29x = 145,305.10 × 57,546.82
  4. Step 4: Simplify right side
    105,286.29x = 8,361,846,434.78
  5. Step 5: Solve for x
    x = 8,361,846,434.78/105,286.29
  6. Step 6: Final answer
    x = 79,420.09

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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.