Home / 136,117.08-187,845.46-82,411.80

Finding the Fourth Proportional to 136,117.08, 187,845.46 and 82,411.80

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Solution

The fourth proportional to 136,117.08, 187,845.46 and 82,411.80 is: 113,730.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,117.08 : 187,845.46 = 82,411.80 : x
  2. Step 2: Convert to fraction form
    136,117.08/187,845.46 = 82,411.80/x
  3. Step 3: Cross multiply
    136,117.08x = 187,845.46 × 82,411.80
  4. Step 4: Simplify right side
    136,117.08x = 15,480,682,480.43
  5. Step 5: Solve for x
    x = 15,480,682,480.43/136,117.08
  6. Step 6: Final answer
    x = 113,730.64

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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.