Home / 127,771.54-176,324.96-76,785.05

Finding the Fourth Proportional to 127,771.54, 176,324.96 and 76,785.05

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Solution

The fourth proportional to 127,771.54, 176,324.96 and 76,785.05 is: 105,963.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,771.54 : 176,324.96 = 76,785.05 : x
  2. Step 2: Convert to fraction form
    127,771.54/176,324.96 = 76,785.05/x
  3. Step 3: Cross multiply
    127,771.54x = 176,324.96 × 76,785.05
  4. Step 4: Simplify right side
    127,771.54x = 13,539,120,180.19
  5. Step 5: Solve for x
    x = 13,539,120,180.19/127,771.54
  6. Step 6: Final answer
    x = 105,963.51

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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.