Home / 144,827.73-199,824.75-87,421.68

Finding the Fourth Proportional to 144,827.73, 199,824.75 and 87,421.68

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Solution

The fourth proportional to 144,827.73, 199,824.75 and 87,421.68 is: 120,619.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,827.73 : 199,824.75 = 87,421.68 : x
  2. Step 2: Convert to fraction form
    144,827.73/199,824.75 = 87,421.68/x
  3. Step 3: Cross multiply
    144,827.73x = 199,824.75 × 87,421.68
  4. Step 4: Simplify right side
    144,827.73x = 17,469,015,413.03
  5. Step 5: Solve for x
    x = 17,469,015,413.03/144,827.73
  6. Step 6: Final answer
    x = 120,619.27

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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.