Home / 102,945.38-142,052.60-57,625.88

Finding the Fourth Proportional to 102,945.38, 142,052.60 and 57,625.88

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Solution

The fourth proportional to 102,945.38, 142,052.60 and 57,625.88 is: 79,516.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,945.38 : 142,052.60 = 57,625.88 : x
  2. Step 2: Convert to fraction form
    102,945.38/142,052.60 = 57,625.88/x
  3. Step 3: Cross multiply
    102,945.38x = 142,052.60 × 57,625.88
  4. Step 4: Simplify right side
    102,945.38x = 8,185,906,081.29
  5. Step 5: Solve for x
    x = 8,185,906,081.29/102,945.38
  6. Step 6: Final answer
    x = 79,516.98

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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.