Home / 127,899.12-176,612.22-80,234.40

Finding the Fourth Proportional to 127,899.12, 176,612.22 and 80,234.40

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Solution

The fourth proportional to 127,899.12, 176,612.22 and 80,234.40 is: 110,793.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,899.12 : 176,612.22 = 80,234.40 : x
  2. Step 2: Convert to fraction form
    127,899.12/176,612.22 = 80,234.40/x
  3. Step 3: Cross multiply
    127,899.12x = 176,612.22 × 80,234.40
  4. Step 4: Simplify right side
    127,899.12x = 14,170,375,504.37
  5. Step 5: Solve for x
    x = 14,170,375,504.37/127,899.12
  6. Step 6: Final answer
    x = 110,793.38

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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.