Home / 117,815.22-162,683.10-109,267.56

Finding the Fourth Proportional to 117,815.22, 162,683.10 and 109,267.56

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Solution

The fourth proportional to 117,815.22, 162,683.10 and 109,267.56 is: 150,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,815.22 : 162,683.10 = 109,267.56 : x
  2. Step 2: Convert to fraction form
    117,815.22/162,683.10 = 109,267.56/x
  3. Step 3: Cross multiply
    117,815.22x = 162,683.10 × 109,267.56
  4. Step 4: Simplify right side
    117,815.22x = 17,775,985,390.24
  5. Step 5: Solve for x
    x = 17,775,985,390.24/117,815.22
  6. Step 6: Final answer
    x = 150,880.21

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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.