Home / 139,541.20-192,564.66-75,878.44

Finding the Fourth Proportional to 139,541.20, 192,564.66 and 75,878.44

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Solution

The fourth proportional to 139,541.20, 192,564.66 and 75,878.44 is: 104,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,541.20 : 192,564.66 = 75,878.44 : x
  2. Step 2: Convert to fraction form
    139,541.20/192,564.66 = 75,878.44/x
  3. Step 3: Cross multiply
    139,541.20x = 192,564.66 × 75,878.44
  4. Step 4: Simplify right side
    139,541.20x = 14,611,505,999.93
  5. Step 5: Solve for x
    x = 14,611,505,999.93/139,541.20
  6. Step 6: Final answer
    x = 104,711.05

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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.