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Finding the Third Proportional to 78,256.13 and 117,743.63

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Solution

The third proportional to 78,256.13 and 117,743.63 is: 177,156.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,256.13 : 117,743.63 = 117,743.63 : x
  2. Step 2: Convert to fraction form
    78,256.13/117,743.63 = 117,743.63/x
  3. Step 3: Cross multiply
    78,256.13x = 117,743.63 × 117,743.63
  4. Step 4: Simplify right side
    78,256.13x = 13,863,561,228.14
  5. Step 5: Solve for x
    x = 13,863,561,228.14/78,256.13
  6. Step 6: Final answer
    x = 177,156.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.