Home / 199,975.88-276,036.21-115,126.76

Finding the Fourth Proportional to 199,975.88, 276,036.21 and 115,126.76

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Solution

The fourth proportional to 199,975.88, 276,036.21 and 115,126.76 is: 158,914.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,975.88 : 276,036.21 = 115,126.76 : x
  2. Step 2: Convert to fraction form
    199,975.88/276,036.21 = 115,126.76/x
  3. Step 3: Cross multiply
    199,975.88x = 276,036.21 × 115,126.76
  4. Step 4: Simplify right side
    199,975.88x = 31,779,154,499.98
  5. Step 5: Solve for x
    x = 31,779,154,499.98/199,975.88
  6. Step 6: Final answer
    x = 158,914.94

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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.