Home / 121,494.20-182,435.70-82,225.40

Finding the Fourth Proportional to 121,494.20, 182,435.70 and 82,225.40

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Solution

The fourth proportional to 121,494.20, 182,435.70 and 82,225.40 is: 123,469.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,494.20 : 182,435.70 = 82,225.40 : x
  2. Step 2: Convert to fraction form
    121,494.20/182,435.70 = 82,225.40/x
  3. Step 3: Cross multiply
    121,494.20x = 182,435.70 × 82,225.40
  4. Step 4: Simplify right side
    121,494.20x = 15,000,848,406.78
  5. Step 5: Solve for x
    x = 15,000,848,406.78/121,494.20
  6. Step 6: Final answer
    x = 123,469.67

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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.