Home / 143,000.23-197,369.04-82,580.71

Finding the Fourth Proportional to 143,000.23, 197,369.04 and 82,580.71

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Solution

The fourth proportional to 143,000.23, 197,369.04 and 82,580.71 is: 113,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,000.23 : 197,369.04 = 82,580.71 : x
  2. Step 2: Convert to fraction form
    143,000.23/197,369.04 = 82,580.71/x
  3. Step 3: Cross multiply
    143,000.23x = 197,369.04 × 82,580.71
  4. Step 4: Simplify right side
    143,000.23x = 16,298,875,455.22
  5. Step 5: Solve for x
    x = 16,298,875,455.22/143,000.23
  6. Step 6: Final answer
    x = 113,977.97

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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.