Home / 143,184.20-197,603.16-82,765.76

Finding the Fourth Proportional to 143,184.20, 197,603.16 and 82,765.76

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Solution

The fourth proportional to 143,184.20, 197,603.16 and 82,765.76 is: 114,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,184.20 : 197,603.16 = 82,765.76 : x
  2. Step 2: Convert to fraction form
    143,184.20/197,603.16 = 82,765.76/x
  3. Step 3: Cross multiply
    143,184.20x = 197,603.16 × 82,765.76
  4. Step 4: Simplify right side
    143,184.20x = 16,354,775,715.80
  5. Step 5: Solve for x
    x = 16,354,775,715.80/143,184.20
  6. Step 6: Final answer
    x = 114,221.93

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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.