Home / 204,881.20-307,571.40-130,001.20

Finding the Fourth Proportional to 204,881.20, 307,571.40 and 130,001.20

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Solution

The fourth proportional to 204,881.20, 307,571.40 and 130,001.20 is: 195,160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,881.20 : 307,571.40 = 130,001.20 : x
  2. Step 2: Convert to fraction form
    204,881.20/307,571.40 = 130,001.20/x
  3. Step 3: Cross multiply
    204,881.20x = 307,571.40 × 130,001.20
  4. Step 4: Simplify right side
    204,881.20x = 39,984,651,085.68
  5. Step 5: Solve for x
    x = 39,984,651,085.68/204,881.20
  6. Step 6: Final answer
    x = 195,160.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.