Home / 281,867.81-422,756.71-82,141.48

Finding the Fourth Proportional to 281,867.81, 422,756.71 and 82,141.48

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Solution

The fourth proportional to 281,867.81, 422,756.71 and 82,141.48 is: 123,199.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,867.81 : 422,756.71 = 82,141.48 : x
  2. Step 2: Convert to fraction form
    281,867.81/422,756.71 = 82,141.48/x
  3. Step 3: Cross multiply
    281,867.81x = 422,756.71 × 82,141.48
  4. Step 4: Simplify right side
    281,867.81x = 34,725,863,037.23
  5. Step 5: Solve for x
    x = 34,725,863,037.23/281,867.81
  6. Step 6: Final answer
    x = 123,199.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.