Home / 136,406.92-188,211.87-82,705.14

Finding the Fourth Proportional to 136,406.92, 188,211.87 and 82,705.14

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Solution

The fourth proportional to 136,406.92, 188,211.87 and 82,705.14 is: 114,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,406.92 : 188,211.87 = 82,705.14 : x
  2. Step 2: Convert to fraction form
    136,406.92/188,211.87 = 82,705.14/x
  3. Step 3: Cross multiply
    136,406.92x = 188,211.87 × 82,705.14
  4. Step 4: Simplify right side
    136,406.92x = 15,566,089,058.01
  5. Step 5: Solve for x
    x = 15,566,089,058.01/136,406.92
  6. Step 6: Final answer
    x = 114,115.10

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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.