Home / 120,371.55-180,559.76-45,527.15

Finding the Fourth Proportional to 120,371.55, 180,559.76 and 45,527.15

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Solution

The fourth proportional to 120,371.55, 180,559.76 and 45,527.15 is: 68,291.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,371.55 : 180,559.76 = 45,527.15 : x
  2. Step 2: Convert to fraction form
    120,371.55/180,559.76 = 45,527.15/x
  3. Step 3: Cross multiply
    120,371.55x = 180,559.76 × 45,527.15
  4. Step 4: Simplify right side
    120,371.55x = 8,220,370,147.05
  5. Step 5: Solve for x
    x = 8,220,370,147.05/120,371.55
  6. Step 6: Final answer
    x = 68,291.64

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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.