Home / 136,411.03-188,256.68-82,698.31

Finding the Fourth Proportional to 136,411.03, 188,256.68 and 82,698.31

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Solution

The fourth proportional to 136,411.03, 188,256.68 and 82,698.31 is: 114,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,411.03 : 188,256.68 = 82,698.31 : x
  2. Step 2: Convert to fraction form
    136,411.03/188,256.68 = 82,698.31/x
  3. Step 3: Cross multiply
    136,411.03x = 188,256.68 × 82,698.31
  4. Step 4: Simplify right side
    136,411.03x = 15,568,509,018.31
  5. Step 5: Solve for x
    x = 15,568,509,018.31/136,411.03
  6. Step 6: Final answer
    x = 114,129.40

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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.