Home / 119,986.20-180,000.90-49,872.60

Finding the Fourth Proportional to 119,986.20, 180,000.90 and 49,872.60

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Solution

The fourth proportional to 119,986.20, 180,000.90 and 49,872.60 is: 74,817.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,986.20 : 180,000.90 = 49,872.60 : x
  2. Step 2: Convert to fraction form
    119,986.20/180,000.90 = 49,872.60/x
  3. Step 3: Cross multiply
    119,986.20x = 180,000.90 × 49,872.60
  4. Step 4: Simplify right side
    119,986.20x = 8,977,112,885.34
  5. Step 5: Solve for x
    x = 8,977,112,885.34/119,986.20
  6. Step 6: Final answer
    x = 74,817.88

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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.