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Finding the Fourth Proportional to 108,648, 149,934.78 and 63,357.39

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Solution

The fourth proportional to 108,648, 149,934.78 and 63,357.39 is: 87,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,648 : 149,934.78 = 63,357.39 : x
  2. Step 2: Convert to fraction form
    108,648/149,934.78 = 63,357.39/x
  3. Step 3: Cross multiply
    108,648x = 149,934.78 × 63,357.39
  4. Step 4: Simplify right side
    108,648x = 9,499,476,331.02
  5. Step 5: Solve for x
    x = 9,499,476,331.02/108,648
  6. Step 6: Final answer
    x = 87,433.51

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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.