Home / 116,911.90-161,299.74-65,918.26

Finding the Fourth Proportional to 116,911.90, 161,299.74 and 65,918.26

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Solution

The fourth proportional to 116,911.90, 161,299.74 and 65,918.26 is: 90,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,911.90 : 161,299.74 = 65,918.26 : x
  2. Step 2: Convert to fraction form
    116,911.90/161,299.74 = 65,918.26/x
  3. Step 3: Cross multiply
    116,911.90x = 161,299.74 × 65,918.26
  4. Step 4: Simplify right side
    116,911.90x = 10,632,598,199.25
  5. Step 5: Solve for x
    x = 10,632,598,199.25/116,911.90
  6. Step 6: Final answer
    x = 90,945.39

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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.