Home / 117,435.16-162,180.66-109,911.88

Finding the Fourth Proportional to 117,435.16, 162,180.66 and 109,911.88

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Solution

The fourth proportional to 117,435.16, 162,180.66 and 109,911.88 is: 151,790.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,435.16 : 162,180.66 = 109,911.88 : x
  2. Step 2: Convert to fraction form
    117,435.16/162,180.66 = 109,911.88/x
  3. Step 3: Cross multiply
    117,435.16x = 162,180.66 × 109,911.88
  4. Step 4: Simplify right side
    117,435.16x = 17,825,581,240.24
  5. Step 5: Solve for x
    x = 17,825,581,240.24/117,435.16
  6. Step 6: Final answer
    x = 151,790.84

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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.