Home / 144,313.44-199,145.16-80,638.80

Finding the Fourth Proportional to 144,313.44, 199,145.16 and 80,638.80

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Solution

The fourth proportional to 144,313.44, 199,145.16 and 80,638.80 is: 111,277.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,313.44 : 199,145.16 = 80,638.80 : x
  2. Step 2: Convert to fraction form
    144,313.44/199,145.16 = 80,638.80/x
  3. Step 3: Cross multiply
    144,313.44x = 199,145.16 × 80,638.80
  4. Step 4: Simplify right side
    144,313.44x = 16,058,826,728.21
  5. Step 5: Solve for x
    x = 16,058,826,728.21/144,313.44
  6. Step 6: Final answer
    x = 111,277.42

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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.