Home / 235,824.83-325,427.53-128,394.62

Finding the Fourth Proportional to 235,824.83, 325,427.53 and 128,394.62

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Solution

The fourth proportional to 235,824.83, 325,427.53 and 128,394.62 is: 177,178.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,824.83 : 325,427.53 = 128,394.62 : x
  2. Step 2: Convert to fraction form
    235,824.83/325,427.53 = 128,394.62/x
  3. Step 3: Cross multiply
    235,824.83x = 325,427.53 × 128,394.62
  4. Step 4: Simplify right side
    235,824.83x = 41,783,143,409.92
  5. Step 5: Solve for x
    x = 41,783,143,409.92/235,824.83
  6. Step 6: Final answer
    x = 177,178.73

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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.