Home / 116,513.28-160,773.12-66,211.20

Finding the Fourth Proportional to 116,513.28, 160,773.12 and 66,211.20

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Solution

The fourth proportional to 116,513.28, 160,773.12 and 66,211.20 is: 91,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,513.28 : 160,773.12 = 66,211.20 : x
  2. Step 2: Convert to fraction form
    116,513.28/160,773.12 = 66,211.20/x
  3. Step 3: Cross multiply
    116,513.28x = 160,773.12 × 66,211.20
  4. Step 4: Simplify right side
    116,513.28x = 10,644,981,202.94
  5. Step 5: Solve for x
    x = 10,644,981,202.94/116,513.28
  6. Step 6: Final answer
    x = 91,362.81

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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.