Home / 171,536.20-257,450.10-138,293.80

Finding the Fourth Proportional to 171,536.20, 257,450.10 and 138,293.80

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Solution

The fourth proportional to 171,536.20, 257,450.10 and 138,293.80 is: 207,558.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,536.20 : 257,450.10 = 138,293.80 : x
  2. Step 2: Convert to fraction form
    171,536.20/257,450.10 = 138,293.80/x
  3. Step 3: Cross multiply
    171,536.20x = 257,450.10 × 138,293.80
  4. Step 4: Simplify right side
    171,536.20x = 35,603,752,639.38
  5. Step 5: Solve for x
    x = 35,603,752,639.38/171,536.20
  6. Step 6: Final answer
    x = 207,558.25

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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.