Home / 186,961.59-257,994.99-102,078.45

Finding the Fourth Proportional to 186,961.59, 257,994.99 and 102,078.45

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Solution

The fourth proportional to 186,961.59, 257,994.99 and 102,078.45 is: 140,861.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,961.59 : 257,994.99 = 102,078.45 : x
  2. Step 2: Convert to fraction form
    186,961.59/257,994.99 = 102,078.45/x
  3. Step 3: Cross multiply
    186,961.59x = 257,994.99 × 102,078.45
  4. Step 4: Simplify right side
    186,961.59x = 26,335,728,686.97
  5. Step 5: Solve for x
    x = 26,335,728,686.97/186,961.59
  6. Step 6: Final answer
    x = 140,861.71

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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.