Home / 102,040.43-140,827.19-61,776.38

Finding the Fourth Proportional to 102,040.43, 140,827.19 and 61,776.38

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Solution

The fourth proportional to 102,040.43, 140,827.19 and 61,776.38 is: 85,258.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,040.43 : 140,827.19 = 61,776.38 : x
  2. Step 2: Convert to fraction form
    102,040.43/140,827.19 = 61,776.38/x
  3. Step 3: Cross multiply
    102,040.43x = 140,827.19 × 61,776.38
  4. Step 4: Simplify right side
    102,040.43x = 8,699,794,046.96
  5. Step 5: Solve for x
    x = 8,699,794,046.96/102,040.43
  6. Step 6: Final answer
    x = 85,258.31

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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.