Home / 151,749.70-209,413.44-83,766.70

Finding the Fourth Proportional to 151,749.70, 209,413.44 and 83,766.70

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Solution

The fourth proportional to 151,749.70, 209,413.44 and 83,766.70 is: 115,597.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,749.70 : 209,413.44 = 83,766.70 : x
  2. Step 2: Convert to fraction form
    151,749.70/209,413.44 = 83,766.70/x
  3. Step 3: Cross multiply
    151,749.70x = 209,413.44 × 83,766.70
  4. Step 4: Simplify right side
    151,749.70x = 17,541,872,804.45
  5. Step 5: Solve for x
    x = 17,541,872,804.45/151,749.70
  6. Step 6: Final answer
    x = 115,597.41

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1.5x scale

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.