Home / 245,020.30-338,132.00-136,131.66

Finding the Fourth Proportional to 245,020.30, 338,132.00 and 136,131.66

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Solution

The fourth proportional to 245,020.30, 338,132.00 and 136,131.66 is: 187,863.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,020.30 : 338,132.00 = 136,131.66 : x
  2. Step 2: Convert to fraction form
    245,020.30/338,132.00 = 136,131.66/x
  3. Step 3: Cross multiply
    245,020.30x = 338,132.00 × 136,131.66
  4. Step 4: Simplify right side
    245,020.30x = 46,030,470,799.45
  5. Step 5: Solve for x
    x = 46,030,470,799.45/245,020.30
  6. Step 6: Final answer
    x = 187,863.91

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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.