Home / 223,544.32-308,494.96-128,059.36

Finding the Fourth Proportional to 223,544.32, 308,494.96 and 128,059.36

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Solution

The fourth proportional to 223,544.32, 308,494.96 and 128,059.36 is: 176,724.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,544.32 : 308,494.96 = 128,059.36 : x
  2. Step 2: Convert to fraction form
    223,544.32/308,494.96 = 128,059.36/x
  3. Step 3: Cross multiply
    223,544.32x = 308,494.96 × 128,059.36
  4. Step 4: Simplify right side
    223,544.32x = 39,505,667,140.83
  5. Step 5: Solve for x
    x = 39,505,667,140.83/223,544.32
  6. Step 6: Final answer
    x = 176,724.09

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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.