Home / 143,295.22-197,732.37-79,622.74

Finding the Fourth Proportional to 143,295.22, 197,732.37 and 79,622.74

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Solution

The fourth proportional to 143,295.22, 197,732.37 and 79,622.74 is: 109,871.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,295.22 : 197,732.37 = 79,622.74 : x
  2. Step 2: Convert to fraction form
    143,295.22/197,732.37 = 79,622.74/x
  3. Step 3: Cross multiply
    143,295.22x = 197,732.37 × 79,622.74
  4. Step 4: Simplify right side
    143,295.22x = 15,743,993,086.09
  5. Step 5: Solve for x
    x = 15,743,993,086.09/143,295.22
  6. Step 6: Final answer
    x = 109,871.03

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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.