Home / 187,779.02-258,993.78-130,418.41

Finding the Fourth Proportional to 187,779.02, 258,993.78 and 130,418.41

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Solution

The fourth proportional to 187,779.02, 258,993.78 and 130,418.41 is: 179,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,779.02 : 258,993.78 = 130,418.41 : x
  2. Step 2: Convert to fraction form
    187,779.02/258,993.78 = 130,418.41/x
  3. Step 3: Cross multiply
    187,779.02x = 258,993.78 × 130,418.41
  4. Step 4: Simplify right side
    187,779.02x = 33,777,556,987.49
  5. Step 5: Solve for x
    x = 33,777,556,987.49/187,779.02
  6. Step 6: Final answer
    x = 179,879.29

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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.