Home / 186,912.26-258,031.44-115,331.72

Finding the Fourth Proportional to 186,912.26, 258,031.44 and 115,331.72

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Solution

The fourth proportional to 186,912.26, 258,031.44 and 115,331.72 is: 159,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,912.26 : 258,031.44 = 115,331.72 : x
  2. Step 2: Convert to fraction form
    186,912.26/258,031.44 = 115,331.72/x
  3. Step 3: Cross multiply
    186,912.26x = 258,031.44 × 115,331.72
  4. Step 4: Simplify right side
    186,912.26x = 29,759,209,789.28
  5. Step 5: Solve for x
    x = 29,759,209,789.28/186,912.26
  6. Step 6: Final answer
    x = 159,214.86

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1.5x scale

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.