Home / 187,763.49-259,113.78-102,880.56

Finding the Fourth Proportional to 187,763.49, 259,113.78 and 102,880.56

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Solution

The fourth proportional to 187,763.49, 259,113.78 and 102,880.56 is: 141,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,763.49 : 259,113.78 = 102,880.56 : x
  2. Step 2: Convert to fraction form
    187,763.49/259,113.78 = 102,880.56/x
  3. Step 3: Cross multiply
    187,763.49x = 259,113.78 × 102,880.56
  4. Step 4: Simplify right side
    187,763.49x = 26,657,770,790.12
  5. Step 5: Solve for x
    x = 26,657,770,790.12/187,763.49
  6. Step 6: Final answer
    x = 141,975.26

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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.