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Finding the Fourth Proportional to 133,309.65, 199,743.03 and 93,783.72

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Solution

The fourth proportional to 133,309.65, 199,743.03 and 93,783.72 is: 140,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,309.65 : 199,743.03 = 93,783.72 : x
  2. Step 2: Convert to fraction form
    133,309.65/199,743.03 = 93,783.72/x
  3. Step 3: Cross multiply
    133,309.65x = 199,743.03 × 93,783.72
  4. Step 4: Simplify right side
    133,309.65x = 18,732,644,397.47
  5. Step 5: Solve for x
    x = 18,732,644,397.47/133,309.65
  6. Step 6: Final answer
    x = 140,519.79

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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.