Home / 245,623.75-338,958.38-136,726.36

Finding the Fourth Proportional to 245,623.75, 338,958.38 and 136,726.36

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Solution

The fourth proportional to 245,623.75, 338,958.38 and 136,726.36 is: 188,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,623.75 : 338,958.38 = 136,726.36 : x
  2. Step 2: Convert to fraction form
    245,623.75/338,958.38 = 136,726.36/x
  3. Step 3: Cross multiply
    245,623.75x = 338,958.38 × 136,726.36
  4. Step 4: Simplify right side
    245,623.75x = 46,344,546,678.11
  5. Step 5: Solve for x
    x = 46,344,546,678.11/245,623.75
  6. Step 6: Final answer
    x = 188,681.05

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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.