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Finding the Fourth Proportional to 133,939.60, 200,520.60 and 130,051.60

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Solution

The fourth proportional to 133,939.60, 200,520.60 and 130,051.60 is: 194,699.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,939.60 : 200,520.60 = 130,051.60 : x
  2. Step 2: Convert to fraction form
    133,939.60/200,520.60 = 130,051.60/x
  3. Step 3: Cross multiply
    133,939.60x = 200,520.60 × 130,051.60
  4. Step 4: Simplify right side
    133,939.60x = 26,078,024,862.96
  5. Step 5: Solve for x
    x = 26,078,024,862.96/133,939.60
  6. Step 6: Final answer
    x = 194,699.89

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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.