Home / 127,899.37-176,612.57-80,234.65

Finding the Fourth Proportional to 127,899.37, 176,612.57 and 80,234.65

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Solution

The fourth proportional to 127,899.37, 176,612.57 and 80,234.65 is: 110,793.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,899.37 : 176,612.57 = 80,234.65 : x
  2. Step 2: Convert to fraction form
    127,899.37/176,612.57 = 80,234.65/x
  3. Step 3: Cross multiply
    127,899.37x = 176,612.57 × 80,234.65
  4. Step 4: Simplify right side
    127,899.37x = 14,170,447,338.38
  5. Step 5: Solve for x
    x = 14,170,447,338.38/127,899.37
  6. Step 6: Final answer
    x = 110,793.72

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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.