Home / 127,899.21-191,684.62-61,239.45

Finding the Fourth Proportional to 127,899.21, 191,684.62 and 61,239.45

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Solution

The fourth proportional to 127,899.21, 191,684.62 and 61,239.45 is: 91,780.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,899.21 : 191,684.62 = 61,239.45 : x
  2. Step 2: Convert to fraction form
    127,899.21/191,684.62 = 61,239.45/x
  3. Step 3: Cross multiply
    127,899.21x = 191,684.62 × 61,239.45
  4. Step 4: Simplify right side
    127,899.21x = 11,738,660,702.26
  5. Step 5: Solve for x
    x = 11,738,660,702.26/127,899.21
  6. Step 6: Final answer
    x = 91,780.56

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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.