Home / 144,795.42-199,815.75-81,134.46

Finding the Fourth Proportional to 144,795.42, 199,815.75 and 81,134.46

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Solution

The fourth proportional to 144,795.42, 199,815.75 and 81,134.46 is: 111,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,795.42 : 199,815.75 = 81,134.46 : x
  2. Step 2: Convert to fraction form
    144,795.42/199,815.75 = 81,134.46/x
  3. Step 3: Cross multiply
    144,795.42x = 199,815.75 × 81,134.46
  4. Step 4: Simplify right side
    144,795.42x = 16,211,942,975.75
  5. Step 5: Solve for x
    x = 16,211,942,975.75/144,795.42
  6. Step 6: Final answer
    x = 111,964.47

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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.