Home / 139,238.18-192,149.06-75,575.98

Finding the Fourth Proportional to 139,238.18, 192,149.06 and 75,575.98

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Solution

The fourth proportional to 139,238.18, 192,149.06 and 75,575.98 is: 104,295.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,238.18 : 192,149.06 = 75,575.98 : x
  2. Step 2: Convert to fraction form
    139,238.18/192,149.06 = 75,575.98/x
  3. Step 3: Cross multiply
    139,238.18x = 192,149.06 × 75,575.98
  4. Step 4: Simplify right side
    139,238.18x = 14,521,853,515.58
  5. Step 5: Solve for x
    x = 14,521,853,515.58/139,238.18
  6. Step 6: Final answer
    x = 104,295.05

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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.