Home / 106,815.42-160,361.64-71,502.66

Finding the Fourth Proportional to 106,815.42, 160,361.64 and 71,502.66

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Solution

The fourth proportional to 106,815.42, 160,361.64 and 71,502.66 is: 107,346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,815.42 : 160,361.64 = 71,502.66 : x
  2. Step 2: Convert to fraction form
    106,815.42/160,361.64 = 71,502.66/x
  3. Step 3: Cross multiply
    106,815.42x = 160,361.64 × 71,502.66
  4. Step 4: Simplify right side
    106,815.42x = 11,466,283,821.96
  5. Step 5: Solve for x
    x = 11,466,283,821.96/106,815.42
  6. Step 6: Final answer
    x = 107,346.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.