Home / 170,815.80-256,333.05-99,738.30

Finding the Fourth Proportional to 170,815.80, 256,333.05 and 99,738.30

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Solution

The fourth proportional to 170,815.80, 256,333.05 and 99,738.30 is: 149,671.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,815.80 : 256,333.05 = 99,738.30 : x
  2. Step 2: Convert to fraction form
    170,815.80/256,333.05 = 99,738.30/x
  3. Step 3: Cross multiply
    170,815.80x = 256,333.05 × 99,738.30
  4. Step 4: Simplify right side
    170,815.80x = 25,566,222,640.82
  5. Step 5: Solve for x
    x = 25,566,222,640.82/170,815.80
  6. Step 6: Final answer
    x = 149,671.30

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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.