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Finding the Fourth Proportional to 133,390.20, 200,016.90 and 39,883.80

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Solution

The fourth proportional to 133,390.20, 200,016.90 and 39,883.80 is: 59,805.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,390.20 : 200,016.90 = 39,883.80 : x
  2. Step 2: Convert to fraction form
    133,390.20/200,016.90 = 39,883.80/x
  3. Step 3: Cross multiply
    133,390.20x = 200,016.90 × 39,883.80
  4. Step 4: Simplify right side
    133,390.20x = 7,977,434,036.22
  5. Step 5: Solve for x
    x = 7,977,434,036.22/133,390.20
  6. Step 6: Final answer
    x = 59,805.25

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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.