Home / 112,733.68-155,593.56-80,555.44

Finding the Fourth Proportional to 112,733.68, 155,593.56 and 80,555.44

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Solution

The fourth proportional to 112,733.68, 155,593.56 and 80,555.44 is: 111,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,733.68 : 155,593.56 = 80,555.44 : x
  2. Step 2: Convert to fraction form
    112,733.68/155,593.56 = 80,555.44/x
  3. Step 3: Cross multiply
    112,733.68x = 155,593.56 × 80,555.44
  4. Step 4: Simplify right side
    112,733.68x = 12,533,907,686.97
  5. Step 5: Solve for x
    x = 12,533,907,686.97/112,733.68
  6. Step 6: Final answer
    x = 111,181.57

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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.