Home / 186,743.63-257,715.32-105,097.38

Finding the Fourth Proportional to 186,743.63, 257,715.32 and 105,097.38

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Solution

The fourth proportional to 186,743.63, 257,715.32 and 105,097.38 is: 145,039.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,743.63 : 257,715.32 = 105,097.38 : x
  2. Step 2: Convert to fraction form
    186,743.63/257,715.32 = 105,097.38/x
  3. Step 3: Cross multiply
    186,743.63x = 257,715.32 × 105,097.38
  4. Step 4: Simplify right side
    186,743.63x = 27,085,204,392.37
  5. Step 5: Solve for x
    x = 27,085,204,392.37/186,743.63
  6. Step 6: Final answer
    x = 145,039.51

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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.