Home / 112,278.68-154,940.64-66,933.26

Finding the Fourth Proportional to 112,278.68, 154,940.64 and 66,933.26

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Solution

The fourth proportional to 112,278.68, 154,940.64 and 66,933.26 is: 92,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,278.68 : 154,940.64 = 66,933.26 : x
  2. Step 2: Convert to fraction form
    112,278.68/154,940.64 = 66,933.26/x
  3. Step 3: Cross multiply
    112,278.68x = 154,940.64 × 66,933.26
  4. Step 4: Simplify right side
    112,278.68x = 10,370,682,141.69
  5. Step 5: Solve for x
    x = 10,370,682,141.69/112,278.68
  6. Step 6: Final answer
    x = 92,365.55

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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.