Home / 115,611.75-173,452.59-81,942.89

Finding the Fourth Proportional to 115,611.75, 173,452.59 and 81,942.89

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Solution

The fourth proportional to 115,611.75, 173,452.59 and 81,942.89 is: 122,939.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,611.75 : 173,452.59 = 81,942.89 : x
  2. Step 2: Convert to fraction form
    115,611.75/173,452.59 = 81,942.89/x
  3. Step 3: Cross multiply
    115,611.75x = 173,452.59 × 81,942.89
  4. Step 4: Simplify right side
    115,611.75x = 14,213,205,635.32
  5. Step 5: Solve for x
    x = 14,213,205,635.32/115,611.75
  6. Step 6: Final answer
    x = 122,939.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.