Home / 222,966.15-307,789.28-136,939.08

Finding the Fourth Proportional to 222,966.15, 307,789.28 and 136,939.08

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Solution

The fourth proportional to 222,966.15, 307,789.28 and 136,939.08 is: 189,034.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,966.15 : 307,789.28 = 136,939.08 : x
  2. Step 2: Convert to fraction form
    222,966.15/307,789.28 = 136,939.08/x
  3. Step 3: Cross multiply
    222,966.15x = 307,789.28 × 136,939.08
  4. Step 4: Simplify right side
    222,966.15x = 42,148,380,152.37
  5. Step 5: Solve for x
    x = 42,148,380,152.37/222,966.15
  6. Step 6: Final answer
    x = 189,034.88

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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.