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Finding the Third Proportional to 61,664 and 128,187.50

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Solution

The third proportional to 61,664 and 128,187.50 is: 266,476.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,664 : 128,187.50 = 128,187.50 : x
  2. Step 2: Convert to fraction form
    61,664/128,187.50 = 128,187.50/x
  3. Step 3: Cross multiply
    61,664x = 128,187.50 × 128,187.50
  4. Step 4: Simplify right side
    61,664x = 16,432,035,156.25
  5. Step 5: Solve for x
    x = 16,432,035,156.25/61,664
  6. Step 6: Final answer
    x = 266,476.96

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.