Home / 117,745.20-162,431.24-69,964.72

Finding the Fourth Proportional to 117,745.20, 162,431.24 and 69,964.72

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Solution

The fourth proportional to 117,745.20, 162,431.24 and 69,964.72 is: 96,517.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,745.20 : 162,431.24 = 69,964.72 : x
  2. Step 2: Convert to fraction form
    117,745.20/162,431.24 = 69,964.72/x
  3. Step 3: Cross multiply
    117,745.20x = 162,431.24 × 69,964.72
  4. Step 4: Simplify right side
    117,745.20x = 11,364,455,994.69
  5. Step 5: Solve for x
    x = 11,364,455,994.69/117,745.20
  6. Step 6: Final answer
    x = 96,517.36

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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.