Home / 117,168.60-161,690.67-63,453.18

Finding the Fourth Proportional to 117,168.60, 161,690.67 and 63,453.18

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Solution

The fourth proportional to 117,168.60, 161,690.67 and 63,453.18 is: 87,564.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,168.60 : 161,690.67 = 63,453.18 : x
  2. Step 2: Convert to fraction form
    117,168.60/161,690.67 = 63,453.18/x
  3. Step 3: Cross multiply
    117,168.60x = 161,690.67 × 63,453.18
  4. Step 4: Simplify right side
    117,168.60x = 10,259,787,187.83
  5. Step 5: Solve for x
    x = 10,259,787,187.83/117,168.60
  6. Step 6: Final answer
    x = 87,564.31

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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.