Home / 149,398.03-206,164.05-81,413.62

Finding the Fourth Proportional to 149,398.03, 206,164.05 and 81,413.62

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Solution

The fourth proportional to 149,398.03, 206,164.05 and 81,413.62 is: 112,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,398.03 : 206,164.05 = 81,413.62 : x
  2. Step 2: Convert to fraction form
    149,398.03/206,164.05 = 81,413.62/x
  3. Step 3: Cross multiply
    149,398.03x = 206,164.05 × 81,413.62
  4. Step 4: Simplify right side
    149,398.03x = 16,784,561,624.36
  5. Step 5: Solve for x
    x = 16,784,561,624.36/149,398.03
  6. Step 6: Final answer
    x = 112,347.94

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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.