Home / 172,743.09-259,114.64-98,819.25

Finding the Fourth Proportional to 172,743.09, 259,114.64 and 98,819.25

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Solution

The fourth proportional to 172,743.09, 259,114.64 and 98,819.25 is: 148,228.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,743.09 : 259,114.64 = 98,819.25 : x
  2. Step 2: Convert to fraction form
    172,743.09/259,114.64 = 98,819.25/x
  3. Step 3: Cross multiply
    172,743.09x = 259,114.64 × 98,819.25
  4. Step 4: Simplify right side
    172,743.09x = 25,605,513,894.72
  5. Step 5: Solve for x
    x = 25,605,513,894.72/172,743.09
  6. Step 6: Final answer
    x = 148,228.88

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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.