Home / 171,663.28-236,892.16-99,065.68

Finding the Fourth Proportional to 171,663.28, 236,892.16 and 99,065.68

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Solution

The fourth proportional to 171,663.28, 236,892.16 and 99,065.68 is: 136,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,663.28 : 236,892.16 = 99,065.68 : x
  2. Step 2: Convert to fraction form
    171,663.28/236,892.16 = 99,065.68/x
  3. Step 3: Cross multiply
    171,663.28x = 236,892.16 × 99,065.68
  4. Step 4: Simplify right side
    171,663.28x = 23,467,882,917.07
  5. Step 5: Solve for x
    x = 23,467,882,917.07/171,663.28
  6. Step 6: Final answer
    x = 136,708.81

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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.