Home / 186,939.22-257,966.36-102,039.88

Finding the Fourth Proportional to 186,939.22, 257,966.36 and 102,039.88

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Solution

The fourth proportional to 186,939.22, 257,966.36 and 102,039.88 is: 140,809.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,939.22 : 257,966.36 = 102,039.88 : x
  2. Step 2: Convert to fraction form
    186,939.22/257,966.36 = 102,039.88/x
  3. Step 3: Cross multiply
    186,939.22x = 257,966.36 × 102,039.88
  4. Step 4: Simplify right side
    186,939.22x = 26,322,855,773.52
  5. Step 5: Solve for x
    x = 26,322,855,773.52/186,939.22
  6. Step 6: Final answer
    x = 140,809.70

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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.