Home / 161,563.49-222,812.47-101,139.64

Finding the Fourth Proportional to 161,563.49, 222,812.47 and 101,139.64

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Solution

The fourth proportional to 161,563.49, 222,812.47 and 101,139.64 is: 139,481.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,563.49 : 222,812.47 = 101,139.64 : x
  2. Step 2: Convert to fraction form
    161,563.49/222,812.47 = 101,139.64/x
  3. Step 3: Cross multiply
    161,563.49x = 222,812.47 × 101,139.64
  4. Step 4: Simplify right side
    161,563.49x = 22,535,172,572.70
  5. Step 5: Solve for x
    x = 22,535,172,572.70/161,563.49
  6. Step 6: Final answer
    x = 139,481.83

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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.