Home / 117,771.05-162,520.62-66,788.57

Finding the Fourth Proportional to 117,771.05, 162,520.62 and 66,788.57

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Solution

The fourth proportional to 117,771.05, 162,520.62 and 66,788.57 is: 92,166.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,771.05 : 162,520.62 = 66,788.57 : x
  2. Step 2: Convert to fraction form
    117,771.05/162,520.62 = 66,788.57/x
  3. Step 3: Cross multiply
    117,771.05x = 162,520.62 × 66,788.57
  4. Step 4: Simplify right side
    117,771.05x = 10,854,519,805.31
  5. Step 5: Solve for x
    x = 10,854,519,805.31/117,771.05
  6. Step 6: Final answer
    x = 92,166.28

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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.