Home / 127,945.36-176,658.42-82,649.80

Finding the Fourth Proportional to 127,945.36, 176,658.42 and 82,649.80

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Solution

The fourth proportional to 127,945.36, 176,658.42 and 82,649.80 is: 114,117.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,945.36 : 176,658.42 = 82,649.80 : x
  2. Step 2: Convert to fraction form
    127,945.36/176,658.42 = 82,649.80/x
  3. Step 3: Cross multiply
    127,945.36x = 176,658.42 × 82,649.80
  4. Step 4: Simplify right side
    127,945.36x = 14,600,783,081.32
  5. Step 5: Solve for x
    x = 14,600,783,081.32/127,945.36
  6. Step 6: Final answer
    x = 114,117.33

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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.