Home / 223,826.24-308,909.74-128,314.46

Finding the Fourth Proportional to 223,826.24, 308,909.74 and 128,314.46

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Solution

The fourth proportional to 223,826.24, 308,909.74 and 128,314.46 is: 177,090.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,826.24 : 308,909.74 = 128,314.46 : x
  2. Step 2: Convert to fraction form
    223,826.24/308,909.74 = 128,314.46/x
  3. Step 3: Cross multiply
    223,826.24x = 308,909.74 × 128,314.46
  4. Step 4: Simplify right side
    223,826.24x = 39,637,586,476.84
  5. Step 5: Solve for x
    x = 39,637,586,476.84/223,826.24
  6. Step 6: Final answer
    x = 177,090.88

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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.