Home / 103,504.20-155,256.30-33,390.60

Finding the Fourth Proportional to 103,504.20, 155,256.30 and 33,390.60

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Solution

The fourth proportional to 103,504.20, 155,256.30 and 33,390.60 is: 50,085.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,504.20 : 155,256.30 = 33,390.60 : x
  2. Step 2: Convert to fraction form
    103,504.20/155,256.30 = 33,390.60/x
  3. Step 3: Cross multiply
    103,504.20x = 155,256.30 × 33,390.60
  4. Step 4: Simplify right side
    103,504.20x = 5,184,101,010.78
  5. Step 5: Solve for x
    x = 5,184,101,010.78/103,504.20
  6. Step 6: Final answer
    x = 50,085.90

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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.