Home / 186,939.76-257,977.92-102,057.68

Finding the Fourth Proportional to 186,939.76, 257,977.92 and 102,057.68

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Solution

The fourth proportional to 186,939.76, 257,977.92 and 102,057.68 is: 140,840.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,939.76 : 257,977.92 = 102,057.68 : x
  2. Step 2: Convert to fraction form
    186,939.76/257,977.92 = 102,057.68/x
  3. Step 3: Cross multiply
    186,939.76x = 257,977.92 × 102,057.68
  4. Step 4: Simplify right side
    186,939.76x = 26,328,628,006.43
  5. Step 5: Solve for x
    x = 26,328,628,006.43/186,939.76
  6. Step 6: Final answer
    x = 140,840.17

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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.