Home / 127,840.14-191,784.51-57,719.25

Finding the Fourth Proportional to 127,840.14, 191,784.51 and 57,719.25

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Solution

The fourth proportional to 127,840.14, 191,784.51 and 57,719.25 is: 86,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,840.14 : 191,784.51 = 57,719.25 : x
  2. Step 2: Convert to fraction form
    127,840.14/191,784.51 = 57,719.25/x
  3. Step 3: Cross multiply
    127,840.14x = 191,784.51 × 57,719.25
  4. Step 4: Simplify right side
    127,840.14x = 11,069,658,078.82
  5. Step 5: Solve for x
    x = 11,069,658,078.82/127,840.14
  6. Step 6: Final answer
    x = 86,589.85

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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.