Home / 144,679.74-199,640.06-81,007.26

Finding the Fourth Proportional to 144,679.74, 199,640.06 and 81,007.26

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Solution

The fourth proportional to 144,679.74, 199,640.06 and 81,007.26 is: 111,779.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,679.74 : 199,640.06 = 81,007.26 : x
  2. Step 2: Convert to fraction form
    144,679.74/199,640.06 = 81,007.26/x
  3. Step 3: Cross multiply
    144,679.74x = 199,640.06 × 81,007.26
  4. Step 4: Simplify right side
    144,679.74x = 16,172,294,246.84
  5. Step 5: Solve for x
    x = 16,172,294,246.84/144,679.74
  6. Step 6: Final answer
    x = 111,779.95

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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.