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Finding the Fourth Proportional to 188,371.22, 259,952.34 and 103,493.74

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Solution

The fourth proportional to 188,371.22, 259,952.34 and 103,493.74 is: 142,821.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,371.22 : 259,952.34 = 103,493.74 : x
  2. Step 2: Convert to fraction form
    188,371.22/259,952.34 = 103,493.74/x
  3. Step 3: Cross multiply
    188,371.22x = 259,952.34 × 103,493.74
  4. Step 4: Simplify right side
    188,371.22x = 26,903,439,888.35
  5. Step 5: Solve for x
    x = 26,903,439,888.35/188,371.22
  6. Step 6: Final answer
    x = 142,821.39

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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.