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Finding the Third Proportional to 66,392.63 and 143,860.13

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Solution

The third proportional to 66,392.63 and 143,860.13 is: 311,717.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,392.63 : 143,860.13 = 143,860.13 : x
  2. Step 2: Convert to fraction form
    66,392.63/143,860.13 = 143,860.13/x
  3. Step 3: Cross multiply
    66,392.63x = 143,860.13 × 143,860.13
  4. Step 4: Simplify right side
    66,392.63x = 20,695,735,565.02
  5. Step 5: Solve for x
    x = 20,695,735,565.02/66,392.63
  6. Step 6: Final answer
    x = 311,717.39

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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.