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Finding the Third Proportional to 78,846.75 and 122,415.75

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Solution

The third proportional to 78,846.75 and 122,415.75 is: 190,060.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,846.75 : 122,415.75 = 122,415.75 : x
  2. Step 2: Convert to fraction form
    78,846.75/122,415.75 = 122,415.75/x
  3. Step 3: Cross multiply
    78,846.75x = 122,415.75 × 122,415.75
  4. Step 4: Simplify right side
    78,846.75x = 14,985,615,848.06
  5. Step 5: Solve for x
    x = 14,985,615,848.06/78,846.75
  6. Step 6: Final answer
    x = 190,060.03

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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.