Home / 148,945.73-205,544.71-80,962.70

Finding the Fourth Proportional to 148,945.73, 205,544.71 and 80,962.70

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Solution

The fourth proportional to 148,945.73, 205,544.71 and 80,962.70 is: 111,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,945.73 : 205,544.71 = 80,962.70 : x
  2. Step 2: Convert to fraction form
    148,945.73/205,544.71 = 80,962.70/x
  3. Step 3: Cross multiply
    148,945.73x = 205,544.71 × 80,962.70
  4. Step 4: Simplify right side
    148,945.73x = 16,641,454,692.32
  5. Step 5: Solve for x
    x = 16,641,454,692.32/148,945.73
  6. Step 6: Final answer
    x = 111,728.31

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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.