Home / 190,691.73-263,153.75-105,808.59

Finding the Fourth Proportional to 190,691.73, 263,153.75 and 105,808.59

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Solution

The fourth proportional to 190,691.73, 263,153.75 and 105,808.59 is: 146,015.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,691.73 : 263,153.75 = 105,808.59 : x
  2. Step 2: Convert to fraction form
    190,691.73/263,153.75 = 105,808.59/x
  3. Step 3: Cross multiply
    190,691.73x = 263,153.75 × 105,808.59
  4. Step 4: Simplify right side
    190,691.73x = 27,843,926,711.67
  5. Step 5: Solve for x
    x = 27,843,926,711.67/190,691.73
  6. Step 6: Final answer
    x = 146,015.39

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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.