Home / 190,830.53-263,335.85-105,942.12

Finding the Fourth Proportional to 190,830.53, 263,335.85 and 105,942.12

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Solution

The fourth proportional to 190,830.53, 263,335.85 and 105,942.12 is: 146,194.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,830.53 : 263,335.85 = 105,942.12 : x
  2. Step 2: Convert to fraction form
    190,830.53/263,335.85 = 105,942.12/x
  3. Step 3: Cross multiply
    190,830.53x = 263,335.85 × 105,942.12
  4. Step 4: Simplify right side
    190,830.53x = 27,898,357,691.29
  5. Step 5: Solve for x
    x = 27,898,357,691.29/190,830.53
  6. Step 6: Final answer
    x = 146,194.42

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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.