Home / 133,119.72-199,625.82-66,534.12

Finding the Fourth Proportional to 133,119.72, 199,625.82 and 66,534.12

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Solution

The fourth proportional to 133,119.72, 199,625.82 and 66,534.12 is: 99,774.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,119.72 : 199,625.82 = 66,534.12 : x
  2. Step 2: Convert to fraction form
    133,119.72/199,625.82 = 66,534.12/x
  3. Step 3: Cross multiply
    133,119.72x = 199,625.82 × 66,534.12
  4. Step 4: Simplify right side
    133,119.72x = 13,281,928,262.98
  5. Step 5: Solve for x
    x = 13,281,928,262.98/133,119.72
  6. Step 6: Final answer
    x = 99,774.31

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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.