Home / 235,441.09-324,907.05-128,011.15

Finding the Fourth Proportional to 235,441.09, 324,907.05 and 128,011.15

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Solution

The fourth proportional to 235,441.09, 324,907.05 and 128,011.15 is: 176,654.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,441.09 : 324,907.05 = 128,011.15 : x
  2. Step 2: Convert to fraction form
    235,441.09/324,907.05 = 128,011.15/x
  3. Step 3: Cross multiply
    235,441.09x = 324,907.05 × 128,011.15
  4. Step 4: Simplify right side
    235,441.09x = 41,591,725,113.61
  5. Step 5: Solve for x
    x = 41,591,725,113.61/235,441.09
  6. Step 6: Final answer
    x = 176,654.49

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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.