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Finding the Fourth Proportional to 116,891.55, 161,289.81 and 69,127.47

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Solution

The fourth proportional to 116,891.55, 161,289.81 and 69,127.47 is: 95,383.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,891.55 : 161,289.81 = 69,127.47 : x
  2. Step 2: Convert to fraction form
    116,891.55/161,289.81 = 69,127.47/x
  3. Step 3: Cross multiply
    116,891.55x = 161,289.81 × 69,127.47
  4. Step 4: Simplify right side
    116,891.55x = 11,149,556,502.08
  5. Step 5: Solve for x
    x = 11,149,556,502.08/116,891.55
  6. Step 6: Final answer
    x = 95,383.77

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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.