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Finding the Fourth Proportional to 133,347.20, 200,020.80 and 54,409.60

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Solution

The fourth proportional to 133,347.20, 200,020.80 and 54,409.60 is: 81,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,347.20 : 200,020.80 = 54,409.60 : x
  2. Step 2: Convert to fraction form
    133,347.20/200,020.80 = 54,409.60/x
  3. Step 3: Cross multiply
    133,347.20x = 200,020.80 × 54,409.60
  4. Step 4: Simplify right side
    133,347.20x = 10,883,051,719.68
  5. Step 5: Solve for x
    x = 10,883,051,719.68/133,347.20
  6. Step 6: Final answer
    x = 81,614.40

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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.