Home / 243,786.40-336,427.37-136,366.42

Finding the Fourth Proportional to 243,786.40, 336,427.37 and 136,366.42

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Solution

The fourth proportional to 243,786.40, 336,427.37 and 136,366.42 is: 188,186.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,786.40 : 336,427.37 = 136,366.42 : x
  2. Step 2: Convert to fraction form
    243,786.40/336,427.37 = 136,366.42/x
  3. Step 3: Cross multiply
    243,786.40x = 336,427.37 × 136,366.42
  4. Step 4: Simplify right side
    243,786.40x = 45,877,396,036.92
  5. Step 5: Solve for x
    x = 45,877,396,036.92/243,786.40
  6. Step 6: Final answer
    x = 188,186.86

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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.