Home / 144,370.29-199,231.45-80,708.09

Finding the Fourth Proportional to 144,370.29, 199,231.45 and 80,708.09

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Solution

The fourth proportional to 144,370.29, 199,231.45 and 80,708.09 is: 111,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,370.29 : 199,231.45 = 80,708.09 : x
  2. Step 2: Convert to fraction form
    144,370.29/199,231.45 = 80,708.09/x
  3. Step 3: Cross multiply
    144,370.29x = 199,231.45 × 80,708.09
  4. Step 4: Simplify right side
    144,370.29x = 16,079,588,599.50
  5. Step 5: Solve for x
    x = 16,079,588,599.50/144,370.29
  6. Step 6: Final answer
    x = 111,377.40

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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.