Home / 226,118.54-312,076.05-135,478.10

Finding the Fourth Proportional to 226,118.54, 312,076.05 and 135,478.10

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Solution

The fourth proportional to 226,118.54, 312,076.05 and 135,478.10 is: 186,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,118.54 : 312,076.05 = 135,478.10 : x
  2. Step 2: Convert to fraction form
    226,118.54/312,076.05 = 135,478.10/x
  3. Step 3: Cross multiply
    226,118.54x = 312,076.05 × 135,478.10
  4. Step 4: Simplify right side
    226,118.54x = 42,279,470,309.51
  5. Step 5: Solve for x
    x = 42,279,470,309.51/226,118.54
  6. Step 6: Final answer
    x = 186,979.23

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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.