Home / 170,883.40-256,351.74-82,120.36

Finding the Fourth Proportional to 170,883.40, 256,351.74 and 82,120.36

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Solution

The fourth proportional to 170,883.40, 256,351.74 and 82,120.36 is: 123,193.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,883.40 : 256,351.74 = 82,120.36 : x
  2. Step 2: Convert to fraction form
    170,883.40/256,351.74 = 82,120.36/x
  3. Step 3: Cross multiply
    170,883.40x = 256,351.74 × 82,120.36
  4. Step 4: Simplify right side
    170,883.40x = 21,051,697,175.43
  5. Step 5: Solve for x
    x = 21,051,697,175.43/170,883.40
  6. Step 6: Final answer
    x = 123,193.34

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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.