Home / 143,205.42-197,649.36-82,767.72

Finding the Fourth Proportional to 143,205.42, 197,649.36 and 82,767.72

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Solution

The fourth proportional to 143,205.42, 197,649.36 and 82,767.72 is: 114,234.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,205.42 : 197,649.36 = 82,767.72 : x
  2. Step 2: Convert to fraction form
    143,205.42/197,649.36 = 82,767.72/x
  3. Step 3: Cross multiply
    143,205.42x = 197,649.36 × 82,767.72
  4. Step 4: Simplify right side
    143,205.42x = 16,358,986,886.66
  5. Step 5: Solve for x
    x = 16,358,986,886.66/143,205.42
  6. Step 6: Final answer
    x = 114,234.41

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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.