Home / 144,109.46-198,867.75-80,453.18

Finding the Fourth Proportional to 144,109.46, 198,867.75 and 80,453.18

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Solution

The fourth proportional to 144,109.46, 198,867.75 and 80,453.18 is: 111,023.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,109.46 : 198,867.75 = 80,453.18 : x
  2. Step 2: Convert to fraction form
    144,109.46/198,867.75 = 80,453.18/x
  3. Step 3: Cross multiply
    144,109.46x = 198,867.75 × 80,453.18
  4. Step 4: Simplify right side
    144,109.46x = 15,999,542,886.95
  5. Step 5: Solve for x
    x = 15,999,542,886.95/144,109.46
  6. Step 6: Final answer
    x = 111,023.54

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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.