Home / 115,725.70-173,308.24-80,087.15

Finding the Fourth Proportional to 115,725.70, 173,308.24 and 80,087.15

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Solution

The fourth proportional to 115,725.70, 173,308.24 and 80,087.15 is: 119,936.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,725.70 : 173,308.24 = 80,087.15 : x
  2. Step 2: Convert to fraction form
    115,725.70/173,308.24 = 80,087.15/x
  3. Step 3: Cross multiply
    115,725.70x = 173,308.24 × 80,087.15
  4. Step 4: Simplify right side
    115,725.70x = 13,879,763,546.50
  5. Step 5: Solve for x
    x = 13,879,763,546.50/115,725.70
  6. Step 6: Final answer
    x = 119,936.74

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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.