Home / 85,112.26-127,668.42-84,989.28

Finding the Fourth Proportional to 85,112.26, 127,668.42 and 84,989.28

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Solution

The fourth proportional to 85,112.26, 127,668.42 and 84,989.28 is: 127,483.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,112.26 : 127,668.42 = 84,989.28 : x
  2. Step 2: Convert to fraction form
    85,112.26/127,668.42 = 84,989.28/x
  3. Step 3: Cross multiply
    85,112.26x = 127,668.42 × 84,989.28
  4. Step 4: Simplify right side
    85,112.26x = 10,850,447,094.54
  5. Step 5: Solve for x
    x = 10,850,447,094.54/85,112.26
  6. Step 6: Final answer
    x = 127,483.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.