Home / 102,076.29-140,871.66-56,764.41

Finding the Fourth Proportional to 102,076.29, 140,871.66 and 56,764.41

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Solution

The fourth proportional to 102,076.29, 140,871.66 and 56,764.41 is: 78,338.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,076.29 : 140,871.66 = 56,764.41 : x
  2. Step 2: Convert to fraction form
    102,076.29/140,871.66 = 56,764.41/x
  3. Step 3: Cross multiply
    102,076.29x = 140,871.66 × 56,764.41
  4. Step 4: Simplify right side
    102,076.29x = 7,996,496,665.62
  5. Step 5: Solve for x
    x = 7,996,496,665.62/102,076.29
  6. Step 6: Final answer
    x = 78,338.43

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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.