Home / 116,187.80-173,844.30-76,821.80

Finding the Fourth Proportional to 116,187.80, 173,844.30 and 76,821.80

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Solution

The fourth proportional to 116,187.80, 173,844.30 and 76,821.80 is: 114,943.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,187.80 : 173,844.30 = 76,821.80 : x
  2. Step 2: Convert to fraction form
    116,187.80/173,844.30 = 76,821.80/x
  3. Step 3: Cross multiply
    116,187.80x = 173,844.30 × 76,821.80
  4. Step 4: Simplify right side
    116,187.80x = 13,355,032,045.74
  5. Step 5: Solve for x
    x = 13,355,032,045.74/116,187.80
  6. Step 6: Final answer
    x = 114,943.50

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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.