Home / 129,085.16-178,087.74-95,174.30

Finding the Fourth Proportional to 129,085.16, 178,087.74 and 95,174.30

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Solution

The fourth proportional to 129,085.16, 178,087.74 and 95,174.30 is: 131,303.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,085.16 : 178,087.74 = 95,174.30 : x
  2. Step 2: Convert to fraction form
    129,085.16/178,087.74 = 95,174.30/x
  3. Step 3: Cross multiply
    129,085.16x = 178,087.74 × 95,174.30
  4. Step 4: Simplify right side
    129,085.16x = 16,949,375,993.08
  5. Step 5: Solve for x
    x = 16,949,375,993.08/129,085.16
  6. Step 6: Final answer
    x = 131,303.83

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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.