Home / 103,329.20-155,015.40-33,215.60

Finding the Fourth Proportional to 103,329.20, 155,015.40 and 33,215.60

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Solution

The fourth proportional to 103,329.20, 155,015.40 and 33,215.60 is: 49,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,329.20 : 155,015.40 = 33,215.60 : x
  2. Step 2: Convert to fraction form
    103,329.20/155,015.40 = 33,215.60/x
  3. Step 3: Cross multiply
    103,329.20x = 155,015.40 × 33,215.60
  4. Step 4: Simplify right side
    103,329.20x = 5,148,929,520.24
  5. Step 5: Solve for x
    x = 5,148,929,520.24/103,329.20
  6. Step 6: Final answer
    x = 49,830.34

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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.