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Finding the Fourth Proportional to 180,431.96, 248,992.66 and 99,859.52

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Solution

The fourth proportional to 180,431.96, 248,992.66 and 99,859.52 is: 137,804.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,431.96 : 248,992.66 = 99,859.52 : x
  2. Step 2: Convert to fraction form
    180,431.96/248,992.66 = 99,859.52/x
  3. Step 3: Cross multiply
    180,431.96x = 248,992.66 × 99,859.52
  4. Step 4: Simplify right side
    180,431.96x = 24,864,287,511.12
  5. Step 5: Solve for x
    x = 24,864,287,511.12/180,431.96
  6. Step 6: Final answer
    x = 137,804.23

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