Home / 151,930.80-209,664.90-83,949.66

Finding the Fourth Proportional to 151,930.80, 209,664.90 and 83,949.66

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Solution

The fourth proportional to 151,930.80, 209,664.90 and 83,949.66 is: 115,850.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,930.80 : 209,664.90 = 83,949.66 : x
  2. Step 2: Convert to fraction form
    151,930.80/209,664.90 = 83,949.66/x
  3. Step 3: Cross multiply
    151,930.80x = 209,664.90 × 83,949.66
  4. Step 4: Simplify right side
    151,930.80x = 17,601,297,068.93
  5. Step 5: Solve for x
    x = 17,601,297,068.93/151,930.80
  6. Step 6: Final answer
    x = 115,850.75

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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.