Home / 139,238.28-192,149.19-75,576.06

Finding the Fourth Proportional to 139,238.28, 192,149.19 and 75,576.06

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Solution

The fourth proportional to 139,238.28, 192,149.19 and 75,576.06 is: 104,295.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,238.28 : 192,149.19 = 75,576.06 : x
  2. Step 2: Convert to fraction form
    139,238.28/192,149.19 = 75,576.06/x
  3. Step 3: Cross multiply
    139,238.28x = 192,149.19 × 75,576.06
  4. Step 4: Simplify right side
    139,238.28x = 14,521,878,712.39
  5. Step 5: Solve for x
    x = 14,521,878,712.39/139,238.28
  6. Step 6: Final answer
    x = 104,295.16

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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.