Home / 112,168.13-154,786.55-66,845.07

Finding the Fourth Proportional to 112,168.13, 154,786.55 and 66,845.07

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Solution

The fourth proportional to 112,168.13, 154,786.55 and 66,845.07 is: 92,242.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,168.13 : 154,786.55 = 66,845.07 : x
  2. Step 2: Convert to fraction form
    112,168.13/154,786.55 = 66,845.07/x
  3. Step 3: Cross multiply
    112,168.13x = 154,786.55 × 66,845.07
  4. Step 4: Simplify right side
    112,168.13x = 10,346,717,435.58
  5. Step 5: Solve for x
    x = 10,346,717,435.58/112,168.13
  6. Step 6: Final answer
    x = 92,242.94

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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.