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Finding the Fourth Proportional to 185,602.22, 256,131.75 and 100,719.26

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Solution

The fourth proportional to 185,602.22, 256,131.75 and 100,719.26 is: 138,992.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,602.22 : 256,131.75 = 100,719.26 : x
  2. Step 2: Convert to fraction form
    185,602.22/256,131.75 = 100,719.26/x
  3. Step 3: Cross multiply
    185,602.22x = 256,131.75 × 100,719.26
  4. Step 4: Simplify right side
    185,602.22x = 25,797,400,322.51
  5. Step 5: Solve for x
    x = 25,797,400,322.51/185,602.22
  6. Step 6: Final answer
    x = 138,992.95

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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.