Home / 120,211.28-180,308.39-41,323.76

Finding the Fourth Proportional to 120,211.28, 180,308.39 and 41,323.76

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Solution

The fourth proportional to 120,211.28, 180,308.39 and 41,323.76 is: 61,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,211.28 : 180,308.39 = 41,323.76 : x
  2. Step 2: Convert to fraction form
    120,211.28/180,308.39 = 41,323.76/x
  3. Step 3: Cross multiply
    120,211.28x = 180,308.39 × 41,323.76
  4. Step 4: Simplify right side
    120,211.28x = 7,451,019,526.19
  5. Step 5: Solve for x
    x = 7,451,019,526.19/120,211.28
  6. Step 6: Final answer
    x = 61,982.70

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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.