Home / 144,619.40-199,568.94-84,191.78

Finding the Fourth Proportional to 144,619.40, 199,568.94 and 84,191.78

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Solution

The fourth proportional to 144,619.40, 199,568.94 and 84,191.78 is: 116,181.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,619.40 : 199,568.94 = 84,191.78 : x
  2. Step 2: Convert to fraction form
    144,619.40/199,568.94 = 84,191.78/x
  3. Step 3: Cross multiply
    144,619.40x = 199,568.94 × 84,191.78
  4. Step 4: Simplify right side
    144,619.40x = 16,802,064,291.31
  5. Step 5: Solve for x
    x = 16,802,064,291.31/144,619.40
  6. Step 6: Final answer
    x = 116,181.26

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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.