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Finding the Third Proportional to 78,331.50 and 114,666.75

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Solution

The third proportional to 78,331.50 and 114,666.75 is: 167,856.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,331.50 : 114,666.75 = 114,666.75 : x
  2. Step 2: Convert to fraction form
    78,331.50/114,666.75 = 114,666.75/x
  3. Step 3: Cross multiply
    78,331.50x = 114,666.75 × 114,666.75
  4. Step 4: Simplify right side
    78,331.50x = 13,148,463,555.56
  5. Step 5: Solve for x
    x = 13,148,463,555.56/78,331.50
  6. Step 6: Final answer
    x = 167,856.65

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.