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Finding the Third Proportional to 136,140.75 and 199,973.81

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Solution

The third proportional to 136,140.75 and 199,973.81 is: 293,736.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,140.75 : 199,973.81 = 199,973.81 : x
  2. Step 2: Convert to fraction form
    136,140.75/199,973.81 = 199,973.81/x
  3. Step 3: Cross multiply
    136,140.75x = 199,973.81 × 199,973.81
  4. Step 4: Simplify right side
    136,140.75x = 39,989,525,685.79
  5. Step 5: Solve for x
    x = 39,989,525,685.79/136,140.75
  6. Step 6: Final answer
    x = 293,736.63

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.