Home / 144,166.96-198,945.48-80,503.12

Finding the Fourth Proportional to 144,166.96, 198,945.48 and 80,503.12

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Solution

The fourth proportional to 144,166.96, 198,945.48 and 80,503.12 is: 111,091.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,166.96 : 198,945.48 = 80,503.12 : x
  2. Step 2: Convert to fraction form
    144,166.96/198,945.48 = 80,503.12/x
  3. Step 3: Cross multiply
    144,166.96x = 198,945.48 × 80,503.12
  4. Step 4: Simplify right side
    144,166.96x = 16,015,731,849.90
  5. Step 5: Solve for x
    x = 16,015,731,849.90/144,166.96
  6. Step 6: Final answer
    x = 111,091.56

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1.5x scale

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.