Home / 139,719.06-192,812.33-76,057.34

Finding the Fourth Proportional to 139,719.06, 192,812.33 and 76,057.34

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Solution

The fourth proportional to 139,719.06, 192,812.33 and 76,057.34 is: 104,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,719.06 : 192,812.33 = 76,057.34 : x
  2. Step 2: Convert to fraction form
    139,719.06/192,812.33 = 76,057.34/x
  3. Step 3: Cross multiply
    139,719.06x = 192,812.33 × 76,057.34
  4. Step 4: Simplify right side
    139,719.06x = 14,664,792,939.00
  5. Step 5: Solve for x
    x = 14,664,792,939.00/139,719.06
  6. Step 6: Final answer
    x = 104,959.14

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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.