Home / 151,778.39-209,413.37-98,043.80

Finding the Fourth Proportional to 151,778.39, 209,413.37 and 98,043.80

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Solution

The fourth proportional to 151,778.39, 209,413.37 and 98,043.80 is: 135,274.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,778.39 : 209,413.37 = 98,043.80 : x
  2. Step 2: Convert to fraction form
    151,778.39/209,413.37 = 98,043.80/x
  3. Step 3: Cross multiply
    151,778.39x = 209,413.37 × 98,043.80
  4. Step 4: Simplify right side
    151,778.39x = 20,531,682,075.39
  5. Step 5: Solve for x
    x = 20,531,682,075.39/151,778.39
  6. Step 6: Final answer
    x = 135,274.08

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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.