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Finding the Fourth Proportional to 133,700.10, 200,550.15 and 127,139.10

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Solution

The fourth proportional to 133,700.10, 200,550.15 and 127,139.10 is: 190,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,700.10 : 200,550.15 = 127,139.10 : x
  2. Step 2: Convert to fraction form
    133,700.10/200,550.15 = 127,139.10/x
  3. Step 3: Cross multiply
    133,700.10x = 200,550.15 × 127,139.10
  4. Step 4: Simplify right side
    133,700.10x = 25,497,765,575.87
  5. Step 5: Solve for x
    x = 25,497,765,575.87/133,700.10
  6. Step 6: Final answer
    x = 190,708.65

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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.