Home / 117,931.82-162,745.79-64,217.21

Finding the Fourth Proportional to 117,931.82, 162,745.79 and 64,217.21

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Solution

The fourth proportional to 117,931.82, 162,745.79 and 64,217.21 is: 88,619.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,931.82 : 162,745.79 = 64,217.21 : x
  2. Step 2: Convert to fraction form
    117,931.82/162,745.79 = 64,217.21/x
  3. Step 3: Cross multiply
    117,931.82x = 162,745.79 × 64,217.21
  4. Step 4: Simplify right side
    117,931.82x = 10,451,079,438.23
  5. Step 5: Solve for x
    x = 10,451,079,438.23/117,931.82
  6. Step 6: Final answer
    x = 88,619.68

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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.