Home / 190,666.59-263,116.40-105,781.83

Finding the Fourth Proportional to 190,666.59, 263,116.40 and 105,781.83

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Solution

The fourth proportional to 190,666.59, 263,116.40 and 105,781.83 is: 145,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,666.59 : 263,116.40 = 105,781.83 : x
  2. Step 2: Convert to fraction form
    190,666.59/263,116.40 = 105,781.83/x
  3. Step 3: Cross multiply
    190,666.59x = 263,116.40 × 105,781.83
  4. Step 4: Simplify right side
    190,666.59x = 27,832,933,766.10
  5. Step 5: Solve for x
    x = 27,832,933,766.10/190,666.59
  6. Step 6: Final answer
    x = 145,976.98

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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.