Home / 117,858.42-162,661.76-66,181.32

Finding the Fourth Proportional to 117,858.42, 162,661.76 and 66,181.32

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Solution

The fourth proportional to 117,858.42, 162,661.76 and 66,181.32 is: 91,339.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,858.42 : 162,661.76 = 66,181.32 : x
  2. Step 2: Convert to fraction form
    117,858.42/162,661.76 = 66,181.32/x
  3. Step 3: Cross multiply
    117,858.42x = 162,661.76 × 66,181.32
  4. Step 4: Simplify right side
    117,858.42x = 10,765,169,128.30
  5. Step 5: Solve for x
    x = 10,765,169,128.30/117,858.42
  6. Step 6: Final answer
    x = 91,339.84

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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.