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Finding the Fourth Proportional to 133,132.40, 199,727.40 and 39,647.60

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Solution

The fourth proportional to 133,132.40, 199,727.40 and 39,647.60 is: 59,479.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,132.40 : 199,727.40 = 39,647.60 : x
  2. Step 2: Convert to fraction form
    133,132.40/199,727.40 = 39,647.60/x
  3. Step 3: Cross multiply
    133,132.40x = 199,727.40 × 39,647.60
  4. Step 4: Simplify right side
    133,132.40x = 7,918,712,064.24
  5. Step 5: Solve for x
    x = 7,918,712,064.24/133,132.40
  6. Step 6: Final answer
    x = 59,479.98

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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.