Home / 235,683.20-325,249.60-128,260.04

Finding the Fourth Proportional to 235,683.20, 325,249.60 and 128,260.04

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Solution

The fourth proportional to 235,683.20, 325,249.60 and 128,260.04 is: 177,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,683.20 : 325,249.60 = 128,260.04 : x
  2. Step 2: Convert to fraction form
    235,683.20/325,249.60 = 128,260.04/x
  3. Step 3: Cross multiply
    235,683.20x = 325,249.60 × 128,260.04
  4. Step 4: Simplify right side
    235,683.20x = 41,716,526,705.98
  5. Step 5: Solve for x
    x = 41,716,526,705.98/235,683.20
  6. Step 6: Final answer
    x = 177,002.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.