Home / 235,571.46-325,085.19-128,142.36

Finding the Fourth Proportional to 235,571.46, 325,085.19 and 128,142.36

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Solution

The fourth proportional to 235,571.46, 325,085.19 and 128,142.36 is: 176,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,571.46 : 325,085.19 = 128,142.36 : x
  2. Step 2: Convert to fraction form
    235,571.46/325,085.19 = 128,142.36/x
  3. Step 3: Cross multiply
    235,571.46x = 325,085.19 × 128,142.36
  4. Step 4: Simplify right side
    235,571.46x = 41,657,183,447.65
  5. Step 5: Solve for x
    x = 41,657,183,447.65/235,571.46
  6. Step 6: Final answer
    x = 176,834.59

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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.