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Finding the Fourth Proportional to 123,669.44, 170,663.84 and 67,080.64

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Solution

The fourth proportional to 123,669.44, 170,663.84 and 67,080.64 is: 92,571.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,669.44 : 170,663.84 = 67,080.64 : x
  2. Step 2: Convert to fraction form
    123,669.44/170,663.84 = 67,080.64/x
  3. Step 3: Cross multiply
    123,669.44x = 170,663.84 × 67,080.64
  4. Step 4: Simplify right side
    123,669.44x = 11,448,239,612.06
  5. Step 5: Solve for x
    x = 11,448,239,612.06/123,669.44
  6. Step 6: Final answer
    x = 92,571.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.