Home / 85,141.39-127,515.24-82,188.94

Finding the Fourth Proportional to 85,141.39, 127,515.24 and 82,188.94

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Solution

The fourth proportional to 85,141.39, 127,515.24 and 82,188.94 is: 123,093.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,141.39 : 127,515.24 = 82,188.94 : x
  2. Step 2: Convert to fraction form
    85,141.39/127,515.24 = 82,188.94/x
  3. Step 3: Cross multiply
    85,141.39x = 127,515.24 × 82,188.94
  4. Step 4: Simplify right side
    85,141.39x = 10,480,342,409.45
  5. Step 5: Solve for x
    x = 10,480,342,409.45/85,141.39
  6. Step 6: Final answer
    x = 123,093.39

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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.