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Finding the Fourth Proportional to 133,908.06, 200,721.87 and 45,130.89

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Solution

The fourth proportional to 133,908.06, 200,721.87 and 45,130.89 is: 67,649.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,908.06 : 200,721.87 = 45,130.89 : x
  2. Step 2: Convert to fraction form
    133,908.06/200,721.87 = 45,130.89/x
  3. Step 3: Cross multiply
    133,908.06x = 200,721.87 × 45,130.89
  4. Step 4: Simplify right side
    133,908.06x = 9,058,756,635.56
  5. Step 5: Solve for x
    x = 9,058,756,635.56/133,908.06
  6. Step 6: Final answer
    x = 67,649.08

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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.