Home / 113,739.39-170,470.73-80,469.05

Finding the Fourth Proportional to 113,739.39, 170,470.73 and 80,469.05

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Solution

The fourth proportional to 113,739.39, 170,470.73 and 80,469.05 is: 120,605.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,739.39 : 170,470.73 = 80,469.05 : x
  2. Step 2: Convert to fraction form
    113,739.39/170,470.73 = 80,469.05/x
  3. Step 3: Cross multiply
    113,739.39x = 170,470.73 × 80,469.05
  4. Step 4: Simplify right side
    113,739.39x = 13,717,616,441.21
  5. Step 5: Solve for x
    x = 13,717,616,441.21/113,739.39
  6. Step 6: Final answer
    x = 120,605.68

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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.