Home / 116,162.85-160,361.06-77,908.44

Finding the Fourth Proportional to 116,162.85, 160,361.06 and 77,908.44

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Solution

The fourth proportional to 116,162.85, 160,361.06 and 77,908.44 is: 107,551.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,162.85 : 160,361.06 = 77,908.44 : x
  2. Step 2: Convert to fraction form
    116,162.85/160,361.06 = 77,908.44/x
  3. Step 3: Cross multiply
    116,162.85x = 160,361.06 × 77,908.44
  4. Step 4: Simplify right side
    116,162.85x = 12,493,480,021.35
  5. Step 5: Solve for x
    x = 12,493,480,021.35/116,162.85
  6. Step 6: Final answer
    x = 107,551.42

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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.