Home / 235,435.70-324,914.55-128,003.43

Finding the Fourth Proportional to 235,435.70, 324,914.55 and 128,003.43

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Solution

The fourth proportional to 235,435.70, 324,914.55 and 128,003.43 is: 176,651.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,435.70 : 324,914.55 = 128,003.43 : x
  2. Step 2: Convert to fraction form
    235,435.70/324,914.55 = 128,003.43/x
  3. Step 3: Cross multiply
    235,435.70x = 324,914.55 × 128,003.43
  4. Step 4: Simplify right side
    235,435.70x = 41,590,176,856.91
  5. Step 5: Solve for x
    x = 41,590,176,856.91/235,435.70
  6. Step 6: Final answer
    x = 176,651.96

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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.