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Finding the Fourth Proportional to 133,620.40, 200,430.60 and 132,698.80

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Solution

The fourth proportional to 133,620.40, 200,430.60 and 132,698.80 is: 199,048.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,620.40 : 200,430.60 = 132,698.80 : x
  2. Step 2: Convert to fraction form
    133,620.40/200,430.60 = 132,698.80/x
  3. Step 3: Cross multiply
    133,620.40x = 200,430.60 × 132,698.80
  4. Step 4: Simplify right side
    133,620.40x = 26,596,900,103.28
  5. Step 5: Solve for x
    x = 26,596,900,103.28/133,620.40
  6. Step 6: Final answer
    x = 199,048.20

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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.