Home / 120,471.22-180,707.23-30,513.90

Finding the Fourth Proportional to 120,471.22, 180,707.23 and 30,513.90

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Solution

The fourth proportional to 120,471.22, 180,707.23 and 30,513.90 is: 45,770.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,471.22 : 180,707.23 = 30,513.90 : x
  2. Step 2: Convert to fraction form
    120,471.22/180,707.23 = 30,513.90/x
  3. Step 3: Cross multiply
    120,471.22x = 180,707.23 × 30,513.90
  4. Step 4: Simplify right side
    120,471.22x = 5,514,081,958.99
  5. Step 5: Solve for x
    x = 5,514,081,958.99/120,471.22
  6. Step 6: Final answer
    x = 45,770.95

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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.