Home / 151,286.36-208,776.71-83,309.65

Finding the Fourth Proportional to 151,286.36, 208,776.71 and 83,309.65

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Solution

The fourth proportional to 151,286.36, 208,776.71 and 83,309.65 is: 114,968.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,286.36 : 208,776.71 = 83,309.65 : x
  2. Step 2: Convert to fraction form
    151,286.36/208,776.71 = 83,309.65/x
  3. Step 3: Cross multiply
    151,286.36x = 208,776.71 × 83,309.65
  4. Step 4: Simplify right side
    151,286.36x = 17,393,114,324.58
  5. Step 5: Solve for x
    x = 17,393,114,324.58/151,286.36
  6. Step 6: Final answer
    x = 114,968.16

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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.