Home / 172,749.52-258,975.25-70,180.12

Finding the Fourth Proportional to 172,749.52, 258,975.25 and 70,180.12

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Solution

The fourth proportional to 172,749.52, 258,975.25 and 70,180.12 is: 105,209.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,749.52 : 258,975.25 = 70,180.12 : x
  2. Step 2: Convert to fraction form
    172,749.52/258,975.25 = 70,180.12/x
  3. Step 3: Cross multiply
    172,749.52x = 258,975.25 × 70,180.12
  4. Step 4: Simplify right side
    172,749.52x = 18,174,914,122.03
  5. Step 5: Solve for x
    x = 18,174,914,122.03/172,749.52
  6. Step 6: Final answer
    x = 105,209.64

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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.