Home / 133,018.23-199,354.07-54,040.13

Finding the Fourth Proportional to 133,018.23, 199,354.07 and 54,040.13

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Solution

The fourth proportional to 133,018.23, 199,354.07 and 54,040.13 is: 80,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,018.23 : 199,354.07 = 54,040.13 : x
  2. Step 2: Convert to fraction form
    133,018.23/199,354.07 = 54,040.13/x
  3. Step 3: Cross multiply
    133,018.23x = 199,354.07 × 54,040.13
  4. Step 4: Simplify right side
    133,018.23x = 10,773,118,997.16
  5. Step 5: Solve for x
    x = 10,773,118,997.16/133,018.23
  6. Step 6: Final answer
    x = 80,989.79

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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.