Home / 102,131.92-140,950.56-56,818.44

Finding the Fourth Proportional to 102,131.92, 140,950.56 and 56,818.44

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Solution

The fourth proportional to 102,131.92, 140,950.56 and 56,818.44 is: 78,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,131.92 : 140,950.56 = 56,818.44 : x
  2. Step 2: Convert to fraction form
    102,131.92/140,950.56 = 56,818.44/x
  3. Step 3: Cross multiply
    102,131.92x = 140,950.56 × 56,818.44
  4. Step 4: Simplify right side
    102,131.92x = 8,008,591,149.40
  5. Step 5: Solve for x
    x = 8,008,591,149.40/102,131.92
  6. Step 6: Final answer
    x = 78,414.18

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1.5x scale

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.