Home / 185,942.25-256,585.32-105,382.08

Finding the Fourth Proportional to 185,942.25, 256,585.32 and 105,382.08

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Solution

The fourth proportional to 185,942.25, 256,585.32 and 105,382.08 is: 145,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,942.25 : 256,585.32 = 105,382.08 : x
  2. Step 2: Convert to fraction form
    185,942.25/256,585.32 = 105,382.08/x
  3. Step 3: Cross multiply
    185,942.25x = 256,585.32 × 105,382.08
  4. Step 4: Simplify right side
    185,942.25x = 27,039,494,719.07
  5. Step 5: Solve for x
    x = 27,039,494,719.07/185,942.25
  6. Step 6: Final answer
    x = 145,418.78

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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.