Home / 189,186.15-261,083.19-112,694.81

Finding the Fourth Proportional to 189,186.15, 261,083.19 and 112,694.81

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Solution

The fourth proportional to 189,186.15, 261,083.19 and 112,694.81 is: 155,522.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,186.15 : 261,083.19 = 112,694.81 : x
  2. Step 2: Convert to fraction form
    189,186.15/261,083.19 = 112,694.81/x
  3. Step 3: Cross multiply
    189,186.15x = 261,083.19 × 112,694.81
  4. Step 4: Simplify right side
    189,186.15x = 29,422,719,185.83
  5. Step 5: Solve for x
    x = 29,422,719,185.83/189,186.15
  6. Step 6: Final answer
    x = 155,522.59

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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.