Home / 144,271.72-199,099.38-80,612.20

Finding the Fourth Proportional to 144,271.72, 199,099.38 and 80,612.20

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Solution

The fourth proportional to 144,271.72, 199,099.38 and 80,612.20 is: 111,247.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,271.72 : 199,099.38 = 80,612.20 : x
  2. Step 2: Convert to fraction form
    144,271.72/199,099.38 = 80,612.20/x
  3. Step 3: Cross multiply
    144,271.72x = 199,099.38 × 80,612.20
  4. Step 4: Simplify right side
    144,271.72x = 16,049,839,040.44
  5. Step 5: Solve for x
    x = 16,049,839,040.44/144,271.72
  6. Step 6: Final answer
    x = 111,247.30

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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.