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Finding the Third Proportional to 39,130 and 85,246

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Solution

The third proportional to 39,130 and 85,246 is: 185,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,130 : 85,246 = 85,246 : x
  2. Step 2: Convert to fraction form
    39,130/85,246 = 85,246/x
  3. Step 3: Cross multiply
    39,130x = 85,246 × 85,246
  4. Step 4: Simplify right side
    39,130x = 7,266,880,516
  5. Step 5: Solve for x
    x = 7,266,880,516/39,130
  6. Step 6: Final answer
    x = 185,711.23

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.