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Finding the Fourth Proportional to 133,613.80, 200,420.70 and 124,865.80

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Solution

The fourth proportional to 133,613.80, 200,420.70 and 124,865.80 is: 187,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,613.80 : 200,420.70 = 124,865.80 : x
  2. Step 2: Convert to fraction form
    133,613.80/200,420.70 = 124,865.80/x
  3. Step 3: Cross multiply
    133,613.80x = 200,420.70 × 124,865.80
  4. Step 4: Simplify right side
    133,613.80x = 25,025,691,042.06
  5. Step 5: Solve for x
    x = 25,025,691,042.06/133,613.80
  6. Step 6: Final answer
    x = 187,298.70

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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.