Home / 133,939.17-200,903.90-54,011.61

Finding the Fourth Proportional to 133,939.17, 200,903.90 and 54,011.61

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Solution

The fourth proportional to 133,939.17, 200,903.90 and 54,011.61 is: 81,015.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,939.17 : 200,903.90 = 54,011.61 : x
  2. Step 2: Convert to fraction form
    133,939.17/200,903.90 = 54,011.61/x
  3. Step 3: Cross multiply
    133,939.17x = 200,903.90 × 54,011.61
  4. Step 4: Simplify right side
    133,939.17x = 10,851,142,824.22
  5. Step 5: Solve for x
    x = 10,851,142,824.22/133,939.17
  6. Step 6: Final answer
    x = 81,015.46

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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.