Home / 186,270.12-257,353.38-129,933

Finding the Fourth Proportional to 186,270.12, 257,353.38 and 129,933

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Solution

The fourth proportional to 186,270.12, 257,353.38 and 129,933 is: 179,517.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,270.12 : 257,353.38 = 129,933 : x
  2. Step 2: Convert to fraction form
    186,270.12/257,353.38 = 129,933/x
  3. Step 3: Cross multiply
    186,270.12x = 257,353.38 × 129,933
  4. Step 4: Simplify right side
    186,270.12x = 33,438,696,723.54
  5. Step 5: Solve for x
    x = 33,438,696,723.54/186,270.12
  6. Step 6: Final answer
    x = 179,517.23

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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.