Home / 144,307.95-199,144.38-80,645.73

Finding the Fourth Proportional to 144,307.95, 199,144.38 and 80,645.73

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Solution

The fourth proportional to 144,307.95, 199,144.38 and 80,645.73 is: 111,290.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,307.95 : 199,144.38 = 80,645.73 : x
  2. Step 2: Convert to fraction form
    144,307.95/199,144.38 = 80,645.73/x
  3. Step 3: Cross multiply
    144,307.95x = 199,144.38 × 80,645.73
  4. Step 4: Simplify right side
    144,307.95x = 16,060,143,900.50
  5. Step 5: Solve for x
    x = 16,060,143,900.50/144,307.95
  6. Step 6: Final answer
    x = 111,290.78

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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.