Home / 144,647.56-199,621.14-80,981.56

Finding the Fourth Proportional to 144,647.56, 199,621.14 and 80,981.56

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Solution

The fourth proportional to 144,647.56, 199,621.14 and 80,981.56 is: 111,758.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,647.56 : 199,621.14 = 80,981.56 : x
  2. Step 2: Convert to fraction form
    144,647.56/199,621.14 = 80,981.56/x
  3. Step 3: Cross multiply
    144,647.56x = 199,621.14 × 80,981.56
  4. Step 4: Simplify right side
    144,647.56x = 16,165,631,326.18
  5. Step 5: Solve for x
    x = 16,165,631,326.18/144,647.56
  6. Step 6: Final answer
    x = 111,758.76

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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.