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Finding the Fourth Proportional to 185,987.28, 256,664.28 and 101,104.56

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Solution

The fourth proportional to 185,987.28, 256,664.28 and 101,104.56 is: 139,525.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,987.28 : 256,664.28 = 101,104.56 : x
  2. Step 2: Convert to fraction form
    185,987.28/256,664.28 = 101,104.56/x
  3. Step 3: Cross multiply
    185,987.28x = 256,664.28 × 101,104.56
  4. Step 4: Simplify right side
    185,987.28x = 25,949,929,097.12
  5. Step 5: Solve for x
    x = 25,949,929,097.12/185,987.28
  6. Step 6: Final answer
    x = 139,525.29

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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.