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Finding the Third Proportional to 74,079 and 120,352.50

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Solution

The third proportional to 74,079 and 120,352.50 is: 195,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,079 : 120,352.50 = 120,352.50 : x
  2. Step 2: Convert to fraction form
    74,079/120,352.50 = 120,352.50/x
  3. Step 3: Cross multiply
    74,079x = 120,352.50 × 120,352.50
  4. Step 4: Simplify right side
    74,079x = 14,484,724,256.25
  5. Step 5: Solve for x
    x = 14,484,724,256.25/74,079
  6. Step 6: Final answer
    x = 195,530.77

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.