Home / 186,781.20-257,748-106,197.60

Finding the Fourth Proportional to 186,781.20, 257,748 and 106,197.60

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Solution

The fourth proportional to 186,781.20, 257,748 and 106,197.60 is: 146,546.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,781.20 : 257,748 = 106,197.60 : x
  2. Step 2: Convert to fraction form
    186,781.20/257,748 = 106,197.60/x
  3. Step 3: Cross multiply
    186,781.20x = 257,748 × 106,197.60
  4. Step 4: Simplify right side
    186,781.20x = 27,372,219,004.80
  5. Step 5: Solve for x
    x = 27,372,219,004.80/186,781.20
  6. Step 6: Final answer
    x = 146,546.97

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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.