Home / 186,536.72-257,346.92-122,905.36

Finding the Fourth Proportional to 186,536.72, 257,346.92 and 122,905.36

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Solution

The fourth proportional to 186,536.72, 257,346.92 and 122,905.36 is: 169,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,536.72 : 257,346.92 = 122,905.36 : x
  2. Step 2: Convert to fraction form
    186,536.72/257,346.92 = 122,905.36/x
  3. Step 3: Cross multiply
    186,536.72x = 257,346.92 × 122,905.36
  4. Step 4: Simplify right side
    186,536.72x = 31,629,315,847.49
  5. Step 5: Solve for x
    x = 31,629,315,847.49/186,536.72
  6. Step 6: Final answer
    x = 169,560.80

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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.