Home / 186,829.14-257,756.82-143,821.78

Finding the Fourth Proportional to 186,829.14, 257,756.82 and 143,821.78

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Solution

The fourth proportional to 186,829.14, 257,756.82 and 143,821.78 is: 198,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,829.14 : 257,756.82 = 143,821.78 : x
  2. Step 2: Convert to fraction form
    186,829.14/257,756.82 = 143,821.78/x
  3. Step 3: Cross multiply
    186,829.14x = 257,756.82 × 143,821.78
  4. Step 4: Simplify right side
    186,829.14x = 37,071,044,659.54
  5. Step 5: Solve for x
    x = 37,071,044,659.54/186,829.14
  6. Step 6: Final answer
    x = 198,422.18

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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.