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Finding the Fourth Proportional to 133,345.40, 200,046.90 and 39,860.60

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Solution

The fourth proportional to 133,345.40, 200,046.90 and 39,860.60 is: 59,799.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,345.40 : 200,046.90 = 39,860.60 : x
  2. Step 2: Convert to fraction form
    133,345.40/200,046.90 = 39,860.60/x
  3. Step 3: Cross multiply
    133,345.40x = 200,046.90 × 39,860.60
  4. Step 4: Simplify right side
    133,345.40x = 7,973,989,462.14
  5. Step 5: Solve for x
    x = 7,973,989,462.14/133,345.40
  6. Step 6: Final answer
    x = 59,799.51

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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.