Home / 117,758.43-162,505.98-66,771.09

Finding the Fourth Proportional to 117,758.43, 162,505.98 and 66,771.09

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Solution

The fourth proportional to 117,758.43, 162,505.98 and 66,771.09 is: 92,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,758.43 : 162,505.98 = 66,771.09 : x
  2. Step 2: Convert to fraction form
    117,758.43/162,505.98 = 66,771.09/x
  3. Step 3: Cross multiply
    117,758.43x = 162,505.98 × 66,771.09
  4. Step 4: Simplify right side
    117,758.43x = 10,850,701,416.12
  5. Step 5: Solve for x
    x = 10,850,701,416.12/117,758.43
  6. Step 6: Final answer
    x = 92,143.73

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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.