Home / 131,201.98-195,779.30-117,064.78

Finding the Fourth Proportional to 131,201.98, 195,779.30 and 117,064.78

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Solution

The fourth proportional to 131,201.98, 195,779.30 and 117,064.78 is: 174,683.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,201.98 : 195,779.30 = 117,064.78 : x
  2. Step 2: Convert to fraction form
    131,201.98/195,779.30 = 117,064.78/x
  3. Step 3: Cross multiply
    131,201.98x = 195,779.30 × 117,064.78
  4. Step 4: Simplify right side
    131,201.98x = 22,918,859,608.28
  5. Step 5: Solve for x
    x = 22,918,859,608.28/131,201.98
  6. Step 6: Final answer
    x = 174,683.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.