Home / 139,238.74-192,149.62-75,576.52

Finding the Fourth Proportional to 139,238.74, 192,149.62 and 75,576.52

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Solution

The fourth proportional to 139,238.74, 192,149.62 and 75,576.52 is: 104,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,238.74 : 192,149.62 = 75,576.52 : x
  2. Step 2: Convert to fraction form
    139,238.74/192,149.62 = 75,576.52/x
  3. Step 3: Cross multiply
    139,238.74x = 192,149.62 × 75,576.52
  4. Step 4: Simplify right side
    139,238.74x = 14,521,999,598.92
  5. Step 5: Solve for x
    x = 14,521,999,598.92/139,238.74
  6. Step 6: Final answer
    x = 104,295.68

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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.