Home / 155,414.30-214,463.90-91,739.79

Finding the Fourth Proportional to 155,414.30, 214,463.90 and 91,739.79

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Solution

The fourth proportional to 155,414.30, 214,463.90 and 91,739.79 is: 126,596.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,414.30 : 214,463.90 = 91,739.79 : x
  2. Step 2: Convert to fraction form
    155,414.30/214,463.90 = 91,739.79/x
  3. Step 3: Cross multiply
    155,414.30x = 214,463.90 × 91,739.79
  4. Step 4: Simplify right side
    155,414.30x = 19,674,873,377.93
  5. Step 5: Solve for x
    x = 19,674,873,377.93/155,414.30
  6. Step 6: Final answer
    x = 126,596.29

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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.