Home / 115,145.22-172,905.39-71,052.24

Finding the Fourth Proportional to 115,145.22, 172,905.39 and 71,052.24

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Solution

The fourth proportional to 115,145.22, 172,905.39 and 71,052.24 is: 106,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,145.22 : 172,905.39 = 71,052.24 : x
  2. Step 2: Convert to fraction form
    115,145.22/172,905.39 = 71,052.24/x
  3. Step 3: Cross multiply
    115,145.22x = 172,905.39 × 71,052.24
  4. Step 4: Simplify right side
    115,145.22x = 12,285,315,267.57
  5. Step 5: Solve for x
    x = 12,285,315,267.57/115,145.22
  6. Step 6: Final answer
    x = 106,694.10

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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.