Home / 118,610.28-177,985.68-43,782.60

Finding the Fourth Proportional to 118,610.28, 177,985.68 and 43,782.60

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Solution

The fourth proportional to 118,610.28, 177,985.68 and 43,782.60 is: 65,699.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,610.28 : 177,985.68 = 43,782.60 : x
  2. Step 2: Convert to fraction form
    118,610.28/177,985.68 = 43,782.60/x
  3. Step 3: Cross multiply
    118,610.28x = 177,985.68 × 43,782.60
  4. Step 4: Simplify right side
    118,610.28x = 7,792,675,833.17
  5. Step 5: Solve for x
    x = 7,792,675,833.17/118,610.28
  6. Step 6: Final answer
    x = 65,699.84

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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.