Home / 117,214.37-161,755.90-63,499.60

Finding the Fourth Proportional to 117,214.37, 161,755.90 and 63,499.60

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Solution

The fourth proportional to 117,214.37, 161,755.90 and 63,499.60 is: 87,629.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,214.37 : 161,755.90 = 63,499.60 : x
  2. Step 2: Convert to fraction form
    117,214.37/161,755.90 = 63,499.60/x
  3. Step 3: Cross multiply
    117,214.37x = 161,755.90 × 63,499.60
  4. Step 4: Simplify right side
    117,214.37x = 10,271,434,947.64
  5. Step 5: Solve for x
    x = 10,271,434,947.64/117,214.37
  6. Step 6: Final answer
    x = 87,629.49

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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.