Home / 186,890.09-257,884.21-105,208.03

Finding the Fourth Proportional to 186,890.09, 257,884.21 and 105,208.03

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Solution

The fourth proportional to 186,890.09, 257,884.21 and 105,208.03 is: 145,173.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,890.09 : 257,884.21 = 105,208.03 : x
  2. Step 2: Convert to fraction form
    186,890.09/257,884.21 = 105,208.03/x
  3. Step 3: Cross multiply
    186,890.09x = 257,884.21 × 105,208.03
  4. Step 4: Simplify right side
    186,890.09x = 27,131,488,476.33
  5. Step 5: Solve for x
    x = 27,131,488,476.33/186,890.09
  6. Step 6: Final answer
    x = 145,173.50

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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.