Home / 84,872.37-116,218.45-81,526.26

Finding the Fourth Proportional to 84,872.37, 116,218.45 and 81,526.26

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Solution

The fourth proportional to 84,872.37, 116,218.45 and 81,526.26 is: 111,636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,872.37 : 116,218.45 = 81,526.26 : x
  2. Step 2: Convert to fraction form
    84,872.37/116,218.45 = 81,526.26/x
  3. Step 3: Cross multiply
    84,872.37x = 116,218.45 × 81,526.26
  4. Step 4: Simplify right side
    84,872.37x = 9,474,855,571.50
  5. Step 5: Solve for x
    x = 9,474,855,571.50/84,872.37
  6. Step 6: Final answer
    x = 111,636.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.