Home / 148,739.70-205,259.59-80,755.33

Finding the Fourth Proportional to 148,739.70, 205,259.59 and 80,755.33

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Solution

The fourth proportional to 148,739.70, 205,259.59 and 80,755.33 is: 111,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,739.70 : 205,259.59 = 80,755.33 : x
  2. Step 2: Convert to fraction form
    148,739.70/205,259.59 = 80,755.33/x
  3. Step 3: Cross multiply
    148,739.70x = 205,259.59 × 80,755.33
  4. Step 4: Simplify right side
    148,739.70x = 16,575,805,211.08
  5. Step 5: Solve for x
    x = 16,575,805,211.08/148,739.70
  6. Step 6: Final answer
    x = 111,441.70

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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.