Home / 83,106.55-115,461.31-82,110.10

Finding the Fourth Proportional to 83,106.55, 115,461.31 and 82,110.10

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Solution

The fourth proportional to 83,106.55, 115,461.31 and 82,110.10 is: 114,076.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,106.55 : 115,461.31 = 82,110.10 : x
  2. Step 2: Convert to fraction form
    83,106.55/115,461.31 = 82,110.10/x
  3. Step 3: Cross multiply
    83,106.55x = 115,461.31 × 82,110.10
  4. Step 4: Simplify right side
    83,106.55x = 9,480,539,933.15
  5. Step 5: Solve for x
    x = 9,480,539,933.15/83,106.55
  6. Step 6: Final answer
    x = 114,076.93

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.