Home / 193,371.18-290,070.75-80,938.32

Finding the Fourth Proportional to 193,371.18, 290,070.75 and 80,938.32

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Solution

The fourth proportional to 193,371.18, 290,070.75 and 80,938.32 is: 121,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,371.18 : 290,070.75 = 80,938.32 : x
  2. Step 2: Convert to fraction form
    193,371.18/290,070.75 = 80,938.32/x
  3. Step 3: Cross multiply
    193,371.18x = 290,070.75 × 80,938.32
  4. Step 4: Simplify right side
    193,371.18x = 23,477,839,186.14
  5. Step 5: Solve for x
    x = 23,477,839,186.14/193,371.18
  6. Step 6: Final answer
    x = 121,413.33

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1.5x scale

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.