Home / 191,258.47-263,788.41-123,286.51

Finding the Fourth Proportional to 191,258.47, 263,788.41 and 123,286.51

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Solution

The fourth proportional to 191,258.47, 263,788.41 and 123,286.51 is: 170,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,258.47 : 263,788.41 = 123,286.51 : x
  2. Step 2: Convert to fraction form
    191,258.47/263,788.41 = 123,286.51/x
  3. Step 3: Cross multiply
    191,258.47x = 263,788.41 × 123,286.51
  4. Step 4: Simplify right side
    191,258.47x = 32,521,552,447.35
  5. Step 5: Solve for x
    x = 32,521,552,447.35/191,258.47
  6. Step 6: Final answer
    x = 170,039.80

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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.