Home / 119,287.20-178,920.48-40,399.68

Finding the Fourth Proportional to 119,287.20, 178,920.48 and 40,399.68

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Solution

The fourth proportional to 119,287.20, 178,920.48 and 40,399.68 is: 60,596.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,287.20 : 178,920.48 = 40,399.68 : x
  2. Step 2: Convert to fraction form
    119,287.20/178,920.48 = 40,399.68/x
  3. Step 3: Cross multiply
    119,287.20x = 178,920.48 × 40,399.68
  4. Step 4: Simplify right side
    119,287.20x = 7,228,330,137.45
  5. Step 5: Solve for x
    x = 7,228,330,137.45/119,287.20
  6. Step 6: Final answer
    x = 60,596.02

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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.