Home / 117,205.14-161,743.87-63,490.16

Finding the Fourth Proportional to 117,205.14, 161,743.87 and 63,490.16

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Solution

The fourth proportional to 117,205.14, 161,743.87 and 63,490.16 is: 87,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,205.14 : 161,743.87 = 63,490.16 : x
  2. Step 2: Convert to fraction form
    117,205.14/161,743.87 = 63,490.16/x
  3. Step 3: Cross multiply
    117,205.14x = 161,743.87 × 63,490.16
  4. Step 4: Simplify right side
    117,205.14x = 10,269,143,059.15
  5. Step 5: Solve for x
    x = 10,269,143,059.15/117,205.14
  6. Step 6: Final answer
    x = 87,616.84

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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.