Home / 223,584.14-308,568.75-128,103.50

Finding the Fourth Proportional to 223,584.14, 308,568.75 and 128,103.50

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Solution

The fourth proportional to 223,584.14, 308,568.75 and 128,103.50 is: 176,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,584.14 : 308,568.75 = 128,103.50 : x
  2. Step 2: Convert to fraction form
    223,584.14/308,568.75 = 128,103.50/x
  3. Step 3: Cross multiply
    223,584.14x = 308,568.75 × 128,103.50
  4. Step 4: Simplify right side
    223,584.14x = 39,528,736,865.63
  5. Step 5: Solve for x
    x = 39,528,736,865.63/223,584.14
  6. Step 6: Final answer
    x = 176,795.80

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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.