Home / 144,293.48-199,121.18-80,631.80

Finding the Fourth Proportional to 144,293.48, 199,121.18 and 80,631.80

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Solution

The fourth proportional to 144,293.48, 199,121.18 and 80,631.80 is: 111,269.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,293.48 : 199,121.18 = 80,631.80 : x
  2. Step 2: Convert to fraction form
    144,293.48/199,121.18 = 80,631.80/x
  3. Step 3: Cross multiply
    144,293.48x = 199,121.18 × 80,631.80
  4. Step 4: Simplify right side
    144,293.48x = 16,055,499,161.52
  5. Step 5: Solve for x
    x = 16,055,499,161.52/144,293.48
  6. Step 6: Final answer
    x = 111,269.75

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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.