Home / 190,585.13-263,000.81-105,710.09

Finding the Fourth Proportional to 190,585.13, 263,000.81 and 105,710.09

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Solution

The fourth proportional to 190,585.13, 263,000.81 and 105,710.09 is: 145,876.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,585.13 : 263,000.81 = 105,710.09 : x
  2. Step 2: Convert to fraction form
    190,585.13/263,000.81 = 105,710.09/x
  3. Step 3: Cross multiply
    190,585.13x = 263,000.81 × 105,710.09
  4. Step 4: Simplify right side
    190,585.13x = 27,801,838,766.62
  5. Step 5: Solve for x
    x = 27,801,838,766.62/190,585.13
  6. Step 6: Final answer
    x = 145,876.22

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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.