Home / 117,937.32-162,749.20-64,221.15

Finding the Fourth Proportional to 117,937.32, 162,749.20 and 64,221.15

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Solution

The fourth proportional to 117,937.32, 162,749.20 and 64,221.15 is: 88,622.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,937.32 : 162,749.20 = 64,221.15 : x
  2. Step 2: Convert to fraction form
    117,937.32/162,749.20 = 64,221.15/x
  3. Step 3: Cross multiply
    117,937.32x = 162,749.20 × 64,221.15
  4. Step 4: Simplify right side
    117,937.32x = 10,451,941,355.75
  5. Step 5: Solve for x
    x = 10,451,941,355.75/117,937.32
  6. Step 6: Final answer
    x = 88,622.85

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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.