Home / 186,376.47-257,165.37-109,919.49

Finding the Fourth Proportional to 186,376.47, 257,165.37 and 109,919.49

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Solution

The fourth proportional to 186,376.47, 257,165.37 and 109,919.49 is: 151,668.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,376.47 : 257,165.37 = 109,919.49 : x
  2. Step 2: Convert to fraction form
    186,376.47/257,165.37 = 109,919.49/x
  3. Step 3: Cross multiply
    186,376.47x = 257,165.37 × 109,919.49
  4. Step 4: Simplify right side
    186,376.47x = 28,267,486,546.78
  5. Step 5: Solve for x
    x = 28,267,486,546.78/186,376.47
  6. Step 6: Final answer
    x = 151,668.75

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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.