Home / 81,234.66-111,854.61-71,106.42

Finding the Fourth Proportional to 81,234.66, 111,854.61 and 71,106.42

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Solution

The fourth proportional to 81,234.66, 111,854.61 and 71,106.42 is: 97,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,234.66 : 111,854.61 = 71,106.42 : x
  2. Step 2: Convert to fraction form
    81,234.66/111,854.61 = 71,106.42/x
  3. Step 3: Cross multiply
    81,234.66x = 111,854.61 × 71,106.42
  4. Step 4: Simplify right side
    81,234.66x = 7,953,580,877.60
  5. Step 5: Solve for x
    x = 7,953,580,877.60/81,234.66
  6. Step 6: Final answer
    x = 97,908.71

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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.