Home / 199,976.38-276,036.90-115,127.26

Finding the Fourth Proportional to 199,976.38, 276,036.90 and 115,127.26

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Solution

The fourth proportional to 199,976.38, 276,036.90 and 115,127.26 is: 158,915.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,976.38 : 276,036.90 = 115,127.26 : x
  2. Step 2: Convert to fraction form
    199,976.38/276,036.90 = 115,127.26/x
  3. Step 3: Cross multiply
    199,976.38x = 276,036.90 × 115,127.26
  4. Step 4: Simplify right side
    199,976.38x = 31,779,371,955.89
  5. Step 5: Solve for x
    x = 31,779,371,955.89/199,976.38
  6. Step 6: Final answer
    x = 158,915.63

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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.