Home / 117,917.61-162,729.22-64,205.57

Finding the Fourth Proportional to 117,917.61, 162,729.22 and 64,205.57

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Solution

The fourth proportional to 117,917.61, 162,729.22 and 64,205.57 is: 88,605.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,917.61 : 162,729.22 = 64,205.57 : x
  2. Step 2: Convert to fraction form
    117,917.61/162,729.22 = 64,205.57/x
  3. Step 3: Cross multiply
    117,917.61x = 162,729.22 × 64,205.57
  4. Step 4: Simplify right side
    117,917.61x = 10,448,121,777.10
  5. Step 5: Solve for x
    x = 10,448,121,777.10/117,917.61
  6. Step 6: Final answer
    x = 88,605.27

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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.