Home / 144,550.10-199,472.58-80,021.72

Finding the Fourth Proportional to 144,550.10, 199,472.58 and 80,021.72

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Solution

The fourth proportional to 144,550.10, 199,472.58 and 80,021.72 is: 110,426.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,550.10 : 199,472.58 = 80,021.72 : x
  2. Step 2: Convert to fraction form
    144,550.10/199,472.58 = 80,021.72/x
  3. Step 3: Cross multiply
    144,550.10x = 199,472.58 × 80,021.72
  4. Step 4: Simplify right side
    144,550.10x = 15,962,138,944.44
  5. Step 5: Solve for x
    x = 15,962,138,944.44/144,550.10
  6. Step 6: Final answer
    x = 110,426.34

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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.