Home / 117,931.56-162,745.44-64,216.96

Finding the Fourth Proportional to 117,931.56, 162,745.44 and 64,216.96

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Solution

The fourth proportional to 117,931.56, 162,745.44 and 64,216.96 is: 88,619.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,931.56 : 162,745.44 = 64,216.96 : x
  2. Step 2: Convert to fraction form
    117,931.56/162,745.44 = 64,216.96/x
  3. Step 3: Cross multiply
    117,931.56x = 162,745.44 × 64,216.96
  4. Step 4: Simplify right side
    117,931.56x = 10,451,017,410.66
  5. Step 5: Solve for x
    x = 10,451,017,410.66/117,931.56
  6. Step 6: Final answer
    x = 88,619.34

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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.