Home / 235,435.80-324,907.94-128,013.18

Finding the Fourth Proportional to 235,435.80, 324,907.94 and 128,013.18

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Solution

The fourth proportional to 235,435.80, 324,907.94 and 128,013.18 is: 176,661.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,435.80 : 324,907.94 = 128,013.18 : x
  2. Step 2: Convert to fraction form
    235,435.80/324,907.94 = 128,013.18/x
  3. Step 3: Cross multiply
    235,435.80x = 324,907.94 × 128,013.18
  4. Step 4: Simplify right side
    235,435.80x = 41,592,498,606.65
  5. Step 5: Solve for x
    x = 41,592,498,606.65/235,435.80
  6. Step 6: Final answer
    x = 176,661.74

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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.