Home / 119,890.20-179,900.10-53,340.60

Finding the Fourth Proportional to 119,890.20, 179,900.10 and 53,340.60

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Solution

The fourth proportional to 119,890.20, 179,900.10 and 53,340.60 is: 80,039.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,890.20 : 179,900.10 = 53,340.60 : x
  2. Step 2: Convert to fraction form
    119,890.20/179,900.10 = 53,340.60/x
  3. Step 3: Cross multiply
    119,890.20x = 179,900.10 × 53,340.60
  4. Step 4: Simplify right side
    119,890.20x = 9,595,979,274.06
  5. Step 5: Solve for x
    x = 9,595,979,274.06/119,890.20
  6. Step 6: Final answer
    x = 80,039.73

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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.