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Finding the Fourth Proportional to 133,495.20, 199,951.20 and 103,679.10

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Solution

The fourth proportional to 133,495.20, 199,951.20 and 103,679.10 is: 155,292.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,495.20 : 199,951.20 = 103,679.10 : x
  2. Step 2: Convert to fraction form
    133,495.20/199,951.20 = 103,679.10/x
  3. Step 3: Cross multiply
    133,495.20x = 199,951.20 × 103,679.10
  4. Step 4: Simplify right side
    133,495.20x = 20,730,760,459.92
  5. Step 5: Solve for x
    x = 20,730,760,459.92/133,495.20
  6. Step 6: Final answer
    x = 155,292.18

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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.