Home / 127,262.52-190,931.94-76,716.36

Finding the Fourth Proportional to 127,262.52, 190,931.94 and 76,716.36

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Solution

The fourth proportional to 127,262.52, 190,931.94 and 76,716.36 is: 115,097.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,262.52 : 190,931.94 = 76,716.36 : x
  2. Step 2: Convert to fraction form
    127,262.52/190,931.94 = 76,716.36/x
  3. Step 3: Cross multiply
    127,262.52x = 190,931.94 × 76,716.36
  4. Step 4: Simplify right side
    127,262.52x = 14,647,603,444.54
  5. Step 5: Solve for x
    x = 14,647,603,444.54/127,262.52
  6. Step 6: Final answer
    x = 115,097.54

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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.