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Finding the Fourth Proportional to 133,813.78, 200,720.76 and 33,981.46

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Solution

The fourth proportional to 133,813.78, 200,720.76 and 33,981.46 is: 50,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,813.78 : 200,720.76 = 33,981.46 : x
  2. Step 2: Convert to fraction form
    133,813.78/200,720.76 = 33,981.46/x
  3. Step 3: Cross multiply
    133,813.78x = 200,720.76 × 33,981.46
  4. Step 4: Simplify right side
    133,813.78x = 6,820,784,477.11
  5. Step 5: Solve for x
    x = 6,820,784,477.11/133,813.78
  6. Step 6: Final answer
    x = 50,972.21

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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.