Home / 144,287.89-199,116.86-80,625.73

Finding the Fourth Proportional to 144,287.89, 199,116.86 and 80,625.73

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Solution

The fourth proportional to 144,287.89, 199,116.86 and 80,625.73 is: 111,263.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,287.89 : 199,116.86 = 80,625.73 : x
  2. Step 2: Convert to fraction form
    144,287.89/199,116.86 = 80,625.73/x
  3. Step 3: Cross multiply
    144,287.89x = 199,116.86 × 80,625.73
  4. Step 4: Simplify right side
    144,287.89x = 16,053,942,192.81
  5. Step 5: Solve for x
    x = 16,053,942,192.81/144,287.89
  6. Step 6: Final answer
    x = 111,263.27

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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.