Home / 139,677.41-192,755.43-76,015.13

Finding the Fourth Proportional to 139,677.41, 192,755.43 and 76,015.13

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Solution

The fourth proportional to 139,677.41, 192,755.43 and 76,015.13 is: 104,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,677.41 : 192,755.43 = 76,015.13 : x
  2. Step 2: Convert to fraction form
    139,677.41/192,755.43 = 76,015.13/x
  3. Step 3: Cross multiply
    139,677.41x = 192,755.43 × 76,015.13
  4. Step 4: Simplify right side
    139,677.41x = 14,652,328,105.88
  5. Step 5: Solve for x
    x = 14,652,328,105.88/139,677.41
  6. Step 6: Final answer
    x = 104,901.20

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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.