Home / 82,976.14-124,352.94-77,661.73

Finding the Fourth Proportional to 82,976.14, 124,352.94 and 77,661.73

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Solution

The fourth proportional to 82,976.14, 124,352.94 and 77,661.73 is: 116,388.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,976.14 : 124,352.94 = 77,661.73 : x
  2. Step 2: Convert to fraction form
    82,976.14/124,352.94 = 77,661.73/x
  3. Step 3: Cross multiply
    82,976.14x = 124,352.94 × 77,661.73
  4. Step 4: Simplify right side
    82,976.14x = 9,657,464,450.99
  5. Step 5: Solve for x
    x = 9,657,464,450.99/82,976.14
  6. Step 6: Final answer
    x = 116,388.45

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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.