Home / 143,179.18-197,611.58-82,784.84

Finding the Fourth Proportional to 143,179.18, 197,611.58 and 82,784.84

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Solution

The fourth proportional to 143,179.18, 197,611.58 and 82,784.84 is: 114,257.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,179.18 : 197,611.58 = 82,784.84 : x
  2. Step 2: Convert to fraction form
    143,179.18/197,611.58 = 82,784.84/x
  3. Step 3: Cross multiply
    143,179.18x = 197,611.58 × 82,784.84
  4. Step 4: Simplify right side
    143,179.18x = 16,359,242,251.35
  5. Step 5: Solve for x
    x = 16,359,242,251.35/143,179.18
  6. Step 6: Final answer
    x = 114,257.13

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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.