Home / 223,670.23-308,673.43-128,195.39

Finding the Fourth Proportional to 223,670.23, 308,673.43 and 128,195.39

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Solution

The fourth proportional to 223,670.23, 308,673.43 and 128,195.39 is: 176,914.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,670.23 : 308,673.43 = 128,195.39 : x
  2. Step 2: Convert to fraction form
    223,670.23/308,673.43 = 128,195.39/x
  3. Step 3: Cross multiply
    223,670.23x = 308,673.43 × 128,195.39
  4. Step 4: Simplify right side
    223,670.23x = 39,570,511,192.68
  5. Step 5: Solve for x
    x = 39,570,511,192.68/223,670.23
  6. Step 6: Final answer
    x = 176,914.52

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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.