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Finding the Fourth Proportional to 133,484.70, 199,935.45 and 103,668.60

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Solution

The fourth proportional to 133,484.70, 199,935.45 and 103,668.60 is: 155,276.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,484.70 : 199,935.45 = 103,668.60 : x
  2. Step 2: Convert to fraction form
    133,484.70/199,935.45 = 103,668.60/x
  3. Step 3: Cross multiply
    133,484.70x = 199,935.45 × 103,668.60
  4. Step 4: Simplify right side
    133,484.70x = 20,727,028,191.87
  5. Step 5: Solve for x
    x = 20,727,028,191.87/133,484.70
  6. Step 6: Final answer
    x = 155,276.43

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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.