Home / 112,163.63-154,780.31-66,840.59

Finding the Fourth Proportional to 112,163.63, 154,780.31 and 66,840.59

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Solution

The fourth proportional to 112,163.63, 154,780.31 and 66,840.59 is: 92,236.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,163.63 : 154,780.31 = 66,840.59 : x
  2. Step 2: Convert to fraction form
    112,163.63/154,780.31 = 66,840.59/x
  3. Step 3: Cross multiply
    112,163.63x = 154,780.31 × 66,840.59
  4. Step 4: Simplify right side
    112,163.63x = 10,345,607,794.84
  5. Step 5: Solve for x
    x = 10,345,607,794.84/112,163.63
  6. Step 6: Final answer
    x = 92,236.75

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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.