Home / 235,715.46-325,287.33-128,286.26

Finding the Fourth Proportional to 235,715.46, 325,287.33 and 128,286.26

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Solution

The fourth proportional to 235,715.46, 325,287.33 and 128,286.26 is: 177,035.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,715.46 : 325,287.33 = 128,286.26 : x
  2. Step 2: Convert to fraction form
    235,715.46/325,287.33 = 128,286.26/x
  3. Step 3: Cross multiply
    235,715.46x = 325,287.33 × 128,286.26
  4. Step 4: Simplify right side
    235,715.46x = 41,729,894,961.92
  5. Step 5: Solve for x
    x = 41,729,894,961.92/235,715.46
  6. Step 6: Final answer
    x = 177,035.04

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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.