Home / 168,660.54-253,224.09-85,612.86

Finding the Fourth Proportional to 168,660.54, 253,224.09 and 85,612.86

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Solution

The fourth proportional to 168,660.54, 253,224.09 and 85,612.86 is: 128,537.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,660.54 : 253,224.09 = 85,612.86 : x
  2. Step 2: Convert to fraction form
    168,660.54/253,224.09 = 85,612.86/x
  3. Step 3: Cross multiply
    168,660.54x = 253,224.09 × 85,612.86
  4. Step 4: Simplify right side
    168,660.54x = 21,679,238,565.80
  5. Step 5: Solve for x
    x = 21,679,238,565.80/168,660.54
  6. Step 6: Final answer
    x = 128,537.70

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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.