Home / 139,580.15-192,611.13-75,916.58

Finding the Fourth Proportional to 139,580.15, 192,611.13 and 75,916.58

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Solution

The fourth proportional to 139,580.15, 192,611.13 and 75,916.58 is: 104,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,580.15 : 192,611.13 = 75,916.58 : x
  2. Step 2: Convert to fraction form
    139,580.15/192,611.13 = 75,916.58/x
  3. Step 3: Cross multiply
    139,580.15x = 192,611.13 × 75,916.58
  4. Step 4: Simplify right side
    139,580.15x = 14,622,378,259.54
  5. Step 5: Solve for x
    x = 14,622,378,259.54/139,580.15
  6. Step 6: Final answer
    x = 104,759.73

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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.