Home / 236,126.79-325,845.45-128,694.51

Finding the Fourth Proportional to 236,126.79, 325,845.45 and 128,694.51

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Solution

The fourth proportional to 236,126.79, 325,845.45 and 128,694.51 is: 177,593.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,126.79 : 325,845.45 = 128,694.51 : x
  2. Step 2: Convert to fraction form
    236,126.79/325,845.45 = 128,694.51/x
  3. Step 3: Cross multiply
    236,126.79x = 325,845.45 × 128,694.51
  4. Step 4: Simplify right side
    236,126.79x = 41,934,520,523.48
  5. Step 5: Solve for x
    x = 41,934,520,523.48/236,126.79
  6. Step 6: Final answer
    x = 177,593.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.