Home / 235,845.62-325,467.74-128,416.30

Finding the Fourth Proportional to 235,845.62, 325,467.74 and 128,416.30

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Solution

The fourth proportional to 235,845.62, 325,467.74 and 128,416.30 is: 177,214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,845.62 : 325,467.74 = 128,416.30 : x
  2. Step 2: Convert to fraction form
    235,845.62/325,467.74 = 128,416.30/x
  3. Step 3: Cross multiply
    235,845.62x = 325,467.74 × 128,416.30
  4. Step 4: Simplify right side
    235,845.62x = 41,795,360,670.74
  5. Step 5: Solve for x
    x = 41,795,360,670.74/235,845.62
  6. Step 6: Final answer
    x = 177,214.91

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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.