Home / 133,149.04-199,712.60-39,654.80

Finding the Fourth Proportional to 133,149.04, 199,712.60 and 39,654.80

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Solution

The fourth proportional to 133,149.04, 199,712.60 and 39,654.80 is: 59,478.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,149.04 : 199,712.60 = 39,654.80 : x
  2. Step 2: Convert to fraction form
    133,149.04/199,712.60 = 39,654.80/x
  3. Step 3: Cross multiply
    133,149.04x = 199,712.60 × 39,654.80
  4. Step 4: Simplify right side
    133,149.04x = 7,919,563,210.48
  5. Step 5: Solve for x
    x = 7,919,563,210.48/133,149.04
  6. Step 6: Final answer
    x = 59,478.94

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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.