Home / 186,078.03-256,782.20-105,512.91

Finding the Fourth Proportional to 186,078.03, 256,782.20 and 105,512.91

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Solution

The fourth proportional to 186,078.03, 256,782.20 and 105,512.91 is: 145,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,078.03 : 256,782.20 = 105,512.91 : x
  2. Step 2: Convert to fraction form
    186,078.03/256,782.20 = 105,512.91/x
  3. Step 3: Cross multiply
    186,078.03x = 256,782.20 × 105,512.91
  4. Step 4: Simplify right side
    186,078.03x = 27,093,836,630.64
  5. Step 5: Solve for x
    x = 27,093,836,630.64/186,078.03
  6. Step 6: Final answer
    x = 145,604.70

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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.