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Finding the Third Proportional to 90,888.75 and 139,519.13

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Solution

The third proportional to 90,888.75 and 139,519.13 is: 214,169.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,888.75 : 139,519.13 = 139,519.13 : x
  2. Step 2: Convert to fraction form
    90,888.75/139,519.13 = 139,519.13/x
  3. Step 3: Cross multiply
    90,888.75x = 139,519.13 × 139,519.13
  4. Step 4: Simplify right side
    90,888.75x = 19,465,586,240.77
  5. Step 5: Solve for x
    x = 19,465,586,240.77/90,888.75
  6. Step 6: Final answer
    x = 214,169.37

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.