Home / 119,945.20-179,939.40-49,831.60

Finding the Fourth Proportional to 119,945.20, 179,939.40 and 49,831.60

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Solution

The fourth proportional to 119,945.20, 179,939.40 and 49,831.60 is: 74,756.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,945.20 : 179,939.40 = 49,831.60 : x
  2. Step 2: Convert to fraction form
    119,945.20/179,939.40 = 49,831.60/x
  3. Step 3: Cross multiply
    119,945.20x = 179,939.40 × 49,831.60
  4. Step 4: Simplify right side
    119,945.20x = 8,966,668,205.04
  5. Step 5: Solve for x
    x = 8,966,668,205.04/119,945.20
  6. Step 6: Final answer
    x = 74,756.37

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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.