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Finding the Fourth Proportional to 133,315.88, 200,047.62 and 79,876.53

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Solution

The fourth proportional to 133,315.88, 200,047.62 and 79,876.53 is: 119,859.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,315.88 : 200,047.62 = 79,876.53 : x
  2. Step 2: Convert to fraction form
    133,315.88/200,047.62 = 79,876.53/x
  3. Step 3: Cross multiply
    133,315.88x = 200,047.62 × 79,876.53
  4. Step 4: Simplify right side
    133,315.88x = 15,979,109,720.36
  5. Step 5: Solve for x
    x = 15,979,109,720.36/133,315.88
  6. Step 6: Final answer
    x = 119,859.02

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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.