Home / 98,745.22-148,139.75-38,779.48

Finding the Fourth Proportional to 98,745.22, 148,139.75 and 38,779.48

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Solution

The fourth proportional to 98,745.22, 148,139.75 and 38,779.48 is: 58,177.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,745.22 : 148,139.75 = 38,779.48 : x
  2. Step 2: Convert to fraction form
    98,745.22/148,139.75 = 38,779.48/x
  3. Step 3: Cross multiply
    98,745.22x = 148,139.75 × 38,779.48
  4. Step 4: Simplify right side
    98,745.22x = 5,744,782,472.33
  5. Step 5: Solve for x
    x = 5,744,782,472.33/98,745.22
  6. Step 6: Final answer
    x = 58,177.83

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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.