Home / 143,201.60-197,653.94-82,807.08

Finding the Fourth Proportional to 143,201.60, 197,653.94 and 82,807.08

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Solution

The fourth proportional to 143,201.60, 197,653.94 and 82,807.08 is: 114,294.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,201.60 : 197,653.94 = 82,807.08 : x
  2. Step 2: Convert to fraction form
    143,201.60/197,653.94 = 82,807.08/x
  3. Step 3: Cross multiply
    143,201.60x = 197,653.94 × 82,807.08
  4. Step 4: Simplify right side
    143,201.60x = 16,367,145,621.90
  5. Step 5: Solve for x
    x = 16,367,145,621.90/143,201.60
  6. Step 6: Final answer
    x = 114,294.43

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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.