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Finding the Fourth Proportional to 144,280.59, 199,108.22 and 80,621.07

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Solution

The fourth proportional to 144,280.59, 199,108.22 and 80,621.07 is: 111,257.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,280.59 : 199,108.22 = 80,621.07 : x
  2. Step 2: Convert to fraction form
    144,280.59/199,108.22 = 80,621.07/x
  3. Step 3: Cross multiply
    144,280.59x = 199,108.22 × 80,621.07
  4. Step 4: Simplify right side
    144,280.59x = 16,052,317,339.09
  5. Step 5: Solve for x
    x = 16,052,317,339.09/144,280.59
  6. Step 6: Final answer
    x = 111,257.64

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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.