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Finding the Fourth Proportional to 133,629.80, 200,444.70 and 40,123.40

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Solution

The fourth proportional to 133,629.80, 200,444.70 and 40,123.40 is: 60,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,629.80 : 200,444.70 = 40,123.40 : x
  2. Step 2: Convert to fraction form
    133,629.80/200,444.70 = 40,123.40/x
  3. Step 3: Cross multiply
    133,629.80x = 200,444.70 × 40,123.40
  4. Step 4: Simplify right side
    133,629.80x = 8,042,522,875.98
  5. Step 5: Solve for x
    x = 8,042,522,875.98/133,629.80
  6. Step 6: Final answer
    x = 60,185.10

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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.