Home / 190,270.80-262,582.26-105,387.66

Finding the Fourth Proportional to 190,270.80, 262,582.26 and 105,387.66

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Solution

The fourth proportional to 190,270.80, 262,582.26 and 105,387.66 is: 145,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,270.80 : 262,582.26 = 105,387.66 : x
  2. Step 2: Convert to fraction form
    190,270.80/262,582.26 = 105,387.66/x
  3. Step 3: Cross multiply
    190,270.80x = 262,582.26 × 105,387.66
  4. Step 4: Simplify right side
    190,270.80x = 27,672,929,938.91
  5. Step 5: Solve for x
    x = 27,672,929,938.91/190,270.80
  6. Step 6: Final answer
    x = 145,439.71

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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.