Home / 100,943.41-139,293.80-58,504.68

Finding the Fourth Proportional to 100,943.41, 139,293.80 and 58,504.68

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Solution

The fourth proportional to 100,943.41, 139,293.80 and 58,504.68 is: 80,731.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,943.41 : 139,293.80 = 58,504.68 : x
  2. Step 2: Convert to fraction form
    100,943.41/139,293.80 = 58,504.68/x
  3. Step 3: Cross multiply
    100,943.41x = 139,293.80 × 58,504.68
  4. Step 4: Simplify right side
    100,943.41x = 8,149,339,194.98
  5. Step 5: Solve for x
    x = 8,149,339,194.98/100,943.41
  6. Step 6: Final answer
    x = 80,731.76

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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.