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Finding the Third Proportional to 74,146.50 and 114,905.81

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Solution

The third proportional to 74,146.50 and 114,905.81 is: 178,071.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,146.50 : 114,905.81 = 114,905.81 : x
  2. Step 2: Convert to fraction form
    74,146.50/114,905.81 = 114,905.81/x
  3. Step 3: Cross multiply
    74,146.50x = 114,905.81 × 114,905.81
  4. Step 4: Simplify right side
    74,146.50x = 13,203,345,746.29
  5. Step 5: Solve for x
    x = 13,203,345,746.29/74,146.50
  6. Step 6: Final answer
    x = 178,071.06

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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.