Home / 216,470.85-298,739.00-120,977.54

Finding the Fourth Proportional to 216,470.85, 298,739.00 and 120,977.54

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Solution

The fourth proportional to 216,470.85, 298,739.00 and 120,977.54 is: 166,954.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,470.85 : 298,739.00 = 120,977.54 : x
  2. Step 2: Convert to fraction form
    216,470.85/298,739.00 = 120,977.54/x
  3. Step 3: Cross multiply
    216,470.85x = 298,739.00 × 120,977.54
  4. Step 4: Simplify right side
    216,470.85x = 36,140,709,917.69
  5. Step 5: Solve for x
    x = 36,140,709,917.69/216,470.85
  6. Step 6: Final answer
    x = 166,954.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.