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Finding the Third Proportional to 68,121.63 and 147,622.50

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Solution

The third proportional to 68,121.63 and 147,622.50 is: 319,904.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,121.63 : 147,622.50 = 147,622.50 : x
  2. Step 2: Convert to fraction form
    68,121.63/147,622.50 = 147,622.50/x
  3. Step 3: Cross multiply
    68,121.63x = 147,622.50 × 147,622.50
  4. Step 4: Simplify right side
    68,121.63x = 21,792,402,506.25
  5. Step 5: Solve for x
    x = 21,792,402,506.25/68,121.63
  6. Step 6: Final answer
    x = 319,904.29

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.