Home / 144,331.91-199,178.30-80,672.39

Finding the Fourth Proportional to 144,331.91, 199,178.30 and 80,672.39

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Solution

The fourth proportional to 144,331.91, 199,178.30 and 80,672.39 is: 111,328.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,331.91 : 199,178.30 = 80,672.39 : x
  2. Step 2: Convert to fraction form
    144,331.91/199,178.30 = 80,672.39/x
  3. Step 3: Cross multiply
    144,331.91x = 199,178.30 × 80,672.39
  4. Step 4: Simplify right side
    144,331.91x = 16,068,189,093.78
  5. Step 5: Solve for x
    x = 16,068,189,093.78/144,331.91
  6. Step 6: Final answer
    x = 111,328.04

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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.