Home / 99,205.56-136,842.48-81,083.16

Finding the Fourth Proportional to 99,205.56, 136,842.48 and 81,083.16

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Solution

The fourth proportional to 99,205.56, 136,842.48 and 81,083.16 is: 111,844.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,205.56 : 136,842.48 = 81,083.16 : x
  2. Step 2: Convert to fraction form
    99,205.56/136,842.48 = 81,083.16/x
  3. Step 3: Cross multiply
    99,205.56x = 136,842.48 × 81,083.16
  4. Step 4: Simplify right side
    99,205.56x = 11,095,620,700.64
  5. Step 5: Solve for x
    x = 11,095,620,700.64/99,205.56
  6. Step 6: Final answer
    x = 111,844.75

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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.