Home / 115,429.86-173,422.22-109,057.19

Finding the Fourth Proportional to 115,429.86, 173,422.22 and 109,057.19

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Solution

The fourth proportional to 115,429.86, 173,422.22 and 109,057.19 is: 163,847.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,429.86 : 173,422.22 = 109,057.19 : x
  2. Step 2: Convert to fraction form
    115,429.86/173,422.22 = 109,057.19/x
  3. Step 3: Cross multiply
    115,429.86x = 173,422.22 × 109,057.19
  4. Step 4: Simplify right side
    115,429.86x = 18,912,938,584.36
  5. Step 5: Solve for x
    x = 18,912,938,584.36/115,429.86
  6. Step 6: Final answer
    x = 163,847.89

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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.