Home / 129,834-179,170.92-92,173.86

Finding the Fourth Proportional to 129,834, 179,170.92 and 92,173.86

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Solution

The fourth proportional to 129,834, 179,170.92 and 92,173.86 is: 127,199.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,834 : 179,170.92 = 92,173.86 : x
  2. Step 2: Convert to fraction form
    129,834/179,170.92 = 92,173.86/x
  3. Step 3: Cross multiply
    129,834x = 179,170.92 × 92,173.86
  4. Step 4: Simplify right side
    129,834x = 16,514,875,296.15
  5. Step 5: Solve for x
    x = 16,514,875,296.15/129,834
  6. Step 6: Final answer
    x = 127,199.93

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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.