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Finding the Fourth Proportional to 116,891.69, 161,307.30 and 65,903.97

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Solution

The fourth proportional to 116,891.69, 161,307.30 and 65,903.97 is: 90,945.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,891.69 : 161,307.30 = 65,903.97 : x
  2. Step 2: Convert to fraction form
    116,891.69/161,307.30 = 65,903.97/x
  3. Step 3: Cross multiply
    116,891.69x = 161,307.30 × 65,903.97
  4. Step 4: Simplify right side
    116,891.69x = 10,630,791,033.96
  5. Step 5: Solve for x
    x = 10,630,791,033.96/116,891.69
  6. Step 6: Final answer
    x = 90,945.66

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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.