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Finding the Third Proportional to 77,356 and 115,746

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Solution

The third proportional to 77,356 and 115,746 is: 173,188.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,356 : 115,746 = 115,746 : x
  2. Step 2: Convert to fraction form
    77,356/115,746 = 115,746/x
  3. Step 3: Cross multiply
    77,356x = 115,746 × 115,746
  4. Step 4: Simplify right side
    77,356x = 13,397,136,516
  5. Step 5: Solve for x
    x = 13,397,136,516/77,356
  6. Step 6: Final answer
    x = 173,188.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.