Home / 206,301.24-309,056.56-139,626.36

Finding the Fourth Proportional to 206,301.24, 309,056.56 and 139,626.36

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Solution

The fourth proportional to 206,301.24, 309,056.56 and 139,626.36 is: 209,172.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,301.24 : 309,056.56 = 139,626.36 : x
  2. Step 2: Convert to fraction form
    206,301.24/309,056.56 = 139,626.36/x
  3. Step 3: Cross multiply
    206,301.24x = 309,056.56 × 139,626.36
  4. Step 4: Simplify right side
    206,301.24x = 43,152,442,506.92
  5. Step 5: Solve for x
    x = 43,152,442,506.92/206,301.24
  6. Step 6: Final answer
    x = 209,172.00

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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.