Home / 153,143.98-229,712.73-82,090.78

Finding the Fourth Proportional to 153,143.98, 229,712.73 and 82,090.78

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Solution

The fourth proportional to 153,143.98, 229,712.73 and 82,090.78 is: 123,134.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,143.98 : 229,712.73 = 82,090.78 : x
  2. Step 2: Convert to fraction form
    153,143.98/229,712.73 = 82,090.78/x
  3. Step 3: Cross multiply
    153,143.98x = 229,712.73 × 82,090.78
  4. Step 4: Simplify right side
    153,143.98x = 18,857,297,181.63
  5. Step 5: Solve for x
    x = 18,857,297,181.63/153,143.98
  6. Step 6: Final answer
    x = 123,134.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.