Home / 128,321.04-192,520.44-58,181.52

Finding the Fourth Proportional to 128,321.04, 192,520.44 and 58,181.52

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Solution

The fourth proportional to 128,321.04, 192,520.44 and 58,181.52 is: 87,289.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,321.04 : 192,520.44 = 58,181.52 : x
  2. Step 2: Convert to fraction form
    128,321.04/192,520.44 = 58,181.52/x
  3. Step 3: Cross multiply
    128,321.04x = 192,520.44 × 58,181.52
  4. Step 4: Simplify right side
    128,321.04x = 11,201,131,830.27
  5. Step 5: Solve for x
    x = 11,201,131,830.27/128,321.04
  6. Step 6: Final answer
    x = 87,289.91

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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.