Home / 208,466.24-287,782.56-139,674.16

Finding the Fourth Proportional to 208,466.24, 287,782.56 and 139,674.16

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Solution

The fourth proportional to 208,466.24, 287,782.56 and 139,674.16 is: 192,816.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,466.24 : 287,782.56 = 139,674.16 : x
  2. Step 2: Convert to fraction form
    208,466.24/287,782.56 = 139,674.16/x
  3. Step 3: Cross multiply
    208,466.24x = 287,782.56 × 139,674.16
  4. Step 4: Simplify right side
    208,466.24x = 40,195,787,330.65
  5. Step 5: Solve for x
    x = 40,195,787,330.65/208,466.24
  6. Step 6: Final answer
    x = 192,816.77

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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.