Home / 139,746.38-192,849.50-76,084.16

Finding the Fourth Proportional to 139,746.38, 192,849.50 and 76,084.16

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Solution

The fourth proportional to 139,746.38, 192,849.50 and 76,084.16 is: 104,995.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,746.38 : 192,849.50 = 76,084.16 : x
  2. Step 2: Convert to fraction form
    139,746.38/192,849.50 = 76,084.16/x
  3. Step 3: Cross multiply
    139,746.38x = 192,849.50 × 76,084.16
  4. Step 4: Simplify right side
    139,746.38x = 14,672,792,213.92
  5. Step 5: Solve for x
    x = 14,672,792,213.92/139,746.38
  6. Step 6: Final answer
    x = 104,995.87

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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.