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Finding the Fourth Proportional to 127,813.68, 176,476.77 and 82,518.12

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Solution

The fourth proportional to 127,813.68, 176,476.77 and 82,518.12 is: 113,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,813.68 : 176,476.77 = 82,518.12 : x
  2. Step 2: Convert to fraction form
    127,813.68/176,476.77 = 82,518.12/x
  3. Step 3: Cross multiply
    127,813.68x = 176,476.77 × 82,518.12
  4. Step 4: Simplify right side
    127,813.68x = 14,562,531,284.07
  5. Step 5: Solve for x
    x = 14,562,531,284.07/127,813.68
  6. Step 6: Final answer
    x = 113,935.62

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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.