Home / 144,021.94-198,718.44-83,557.54

Finding the Fourth Proportional to 144,021.94, 198,718.44 and 83,557.54

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Solution

The fourth proportional to 144,021.94, 198,718.44 and 83,557.54 is: 115,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,021.94 : 198,718.44 = 83,557.54 : x
  2. Step 2: Convert to fraction form
    144,021.94/198,718.44 = 83,557.54/x
  3. Step 3: Cross multiply
    144,021.94x = 198,718.44 × 83,557.54
  4. Step 4: Simplify right side
    144,021.94x = 16,604,423,999.04
  5. Step 5: Solve for x
    x = 16,604,423,999.04/144,021.94
  6. Step 6: Final answer
    x = 115,290.93

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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.