Home / 139,680.44-192,759.04-76,018.69

Finding the Fourth Proportional to 139,680.44, 192,759.04 and 76,018.69

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Solution

The fourth proportional to 139,680.44, 192,759.04 and 76,018.69 is: 104,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,680.44 : 192,759.04 = 76,018.69 : x
  2. Step 2: Convert to fraction form
    139,680.44/192,759.04 = 76,018.69/x
  3. Step 3: Cross multiply
    139,680.44x = 192,759.04 × 76,018.69
  4. Step 4: Simplify right side
    139,680.44x = 14,653,289,706.46
  5. Step 5: Solve for x
    x = 14,653,289,706.46/139,680.44
  6. Step 6: Final answer
    x = 104,905.81

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1.5x scale

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.