Home / 120,684.20-180,985.29-41,779.97

Finding the Fourth Proportional to 120,684.20, 180,985.29 and 41,779.97

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Solution

The fourth proportional to 120,684.20, 180,985.29 and 41,779.97 is: 62,655.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,684.20 : 180,985.29 = 41,779.97 : x
  2. Step 2: Convert to fraction form
    120,684.20/180,985.29 = 41,779.97/x
  3. Step 3: Cross multiply
    120,684.20x = 180,985.29 × 41,779.97
  4. Step 4: Simplify right side
    120,684.20x = 7,561,559,603.73
  5. Step 5: Solve for x
    x = 7,561,559,603.73/120,684.20
  6. Step 6: Final answer
    x = 62,655.76

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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.