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Finding the Fourth Proportional to 133,373.80, 199,791.90 and 83,300.20

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Solution

The fourth proportional to 133,373.80, 199,791.90 and 83,300.20 is: 124,782.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,373.80 : 199,791.90 = 83,300.20 : x
  2. Step 2: Convert to fraction form
    133,373.80/199,791.90 = 83,300.20/x
  3. Step 3: Cross multiply
    133,373.80x = 199,791.90 × 83,300.20
  4. Step 4: Simplify right side
    133,373.80x = 16,642,705,228.38
  5. Step 5: Solve for x
    x = 16,642,705,228.38/133,373.80
  6. Step 6: Final answer
    x = 124,782.42

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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.