Home / 117,765.47-162,546.12-66,808.58

Finding the Fourth Proportional to 117,765.47, 162,546.12 and 66,808.58

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Solution

The fourth proportional to 117,765.47, 162,546.12 and 66,808.58 is: 92,212.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,765.47 : 162,546.12 = 66,808.58 : x
  2. Step 2: Convert to fraction form
    117,765.47/162,546.12 = 66,808.58/x
  3. Step 3: Cross multiply
    117,765.47x = 162,546.12 × 66,808.58
  4. Step 4: Simplify right side
    117,765.47x = 10,859,474,648.98
  5. Step 5: Solve for x
    x = 10,859,474,648.98/117,765.47
  6. Step 6: Final answer
    x = 92,212.73

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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.