Home / 103,557.88-155,314.68-33,418.36

Finding the Fourth Proportional to 103,557.88, 155,314.68 and 33,418.36

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Solution

The fourth proportional to 103,557.88, 155,314.68 and 33,418.36 is: 50,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,557.88 : 155,314.68 = 33,418.36 : x
  2. Step 2: Convert to fraction form
    103,557.88/155,314.68 = 33,418.36/x
  3. Step 3: Cross multiply
    103,557.88x = 155,314.68 × 33,418.36
  4. Step 4: Simplify right side
    103,557.88x = 5,190,361,889.52
  5. Step 5: Solve for x
    x = 5,190,361,889.52/103,557.88
  6. Step 6: Final answer
    x = 50,120.40

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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.