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Finding the Third Proportional to 75,135 and 116,280

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Solution

The third proportional to 75,135 and 116,280 is: 179,956.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,135 : 116,280 = 116,280 : x
  2. Step 2: Convert to fraction form
    75,135/116,280 = 116,280/x
  3. Step 3: Cross multiply
    75,135x = 116,280 × 116,280
  4. Step 4: Simplify right side
    75,135x = 13,521,038,400
  5. Step 5: Solve for x
    x = 13,521,038,400/75,135
  6. Step 6: Final answer
    x = 179,956.59

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.