Home / 148,986.26-205,601.02-81,918.26

Finding the Fourth Proportional to 148,986.26, 205,601.02 and 81,918.26

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Solution

The fourth proportional to 148,986.26, 205,601.02 and 81,918.26 is: 113,047.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,986.26 : 205,601.02 = 81,918.26 : x
  2. Step 2: Convert to fraction form
    148,986.26/205,601.02 = 81,918.26/x
  3. Step 3: Cross multiply
    148,986.26x = 205,601.02 × 81,918.26
  4. Step 4: Simplify right side
    148,986.26x = 16,842,477,812.63
  5. Step 5: Solve for x
    x = 16,842,477,812.63/148,986.26
  6. Step 6: Final answer
    x = 113,047.19

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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.