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Finding the Fourth Proportional to 133,359.30, 200,148.30 and 128,985.30

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Solution

The fourth proportional to 133,359.30, 200,148.30 and 128,985.30 is: 193,583.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,359.30 : 200,148.30 = 128,985.30 : x
  2. Step 2: Convert to fraction form
    133,359.30/200,148.30 = 128,985.30/x
  3. Step 3: Cross multiply
    133,359.30x = 200,148.30 × 128,985.30
  4. Step 4: Simplify right side
    133,359.30x = 25,816,188,519.99
  5. Step 5: Solve for x
    x = 25,816,188,519.99/133,359.30
  6. Step 6: Final answer
    x = 193,583.71

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1.5x scale

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.