Home / 136,633.87-188,569.52-82,921.15

Finding the Fourth Proportional to 136,633.87, 188,569.52 and 82,921.15

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Solution

The fourth proportional to 136,633.87, 188,569.52 and 82,921.15 is: 114,440.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,633.87 : 188,569.52 = 82,921.15 : x
  2. Step 2: Convert to fraction form
    136,633.87/188,569.52 = 82,921.15/x
  3. Step 3: Cross multiply
    136,633.87x = 188,569.52 × 82,921.15
  4. Step 4: Simplify right side
    136,633.87x = 15,636,401,453.35
  5. Step 5: Solve for x
    x = 15,636,401,453.35/136,633.87
  6. Step 6: Final answer
    x = 114,440.16

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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.