Home / 102,040.17-140,766.44-87,868.41

Finding the Fourth Proportional to 102,040.17, 140,766.44 and 87,868.41

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Solution

The fourth proportional to 102,040.17, 140,766.44 and 87,868.41 is: 121,216.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,040.17 : 140,766.44 = 87,868.41 : x
  2. Step 2: Convert to fraction form
    102,040.17/140,766.44 = 87,868.41/x
  3. Step 3: Cross multiply
    102,040.17x = 140,766.44 × 87,868.41
  4. Step 4: Simplify right side
    102,040.17x = 12,368,922,296.94
  5. Step 5: Solve for x
    x = 12,368,922,296.94/102,040.17
  6. Step 6: Final answer
    x = 121,216.21

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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.