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Finding the Third Proportional to 78,063.75 and 115,637.63

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Solution

The third proportional to 78,063.75 and 115,637.63 is: 171,296.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,063.75 : 115,637.63 = 115,637.63 : x
  2. Step 2: Convert to fraction form
    78,063.75/115,637.63 = 115,637.63/x
  3. Step 3: Cross multiply
    78,063.75x = 115,637.63 × 115,637.63
  4. Step 4: Simplify right side
    78,063.75x = 13,372,060,315.64
  5. Step 5: Solve for x
    x = 13,372,060,315.64/78,063.75
  6. Step 6: Final answer
    x = 171,296.67

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.