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Finding the Fourth Proportional to 101,484.69, 152,179.03 and 30,379.85

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Solution

The fourth proportional to 101,484.69, 152,179.03 and 30,379.85 is: 45,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,484.69 : 152,179.03 = 30,379.85 : x
  2. Step 2: Convert to fraction form
    101,484.69/152,179.03 = 30,379.85/x
  3. Step 3: Cross multiply
    101,484.69x = 152,179.03 × 30,379.85
  4. Step 4: Simplify right side
    101,484.69x = 4,623,176,104.55
  5. Step 5: Solve for x
    x = 4,623,176,104.55/101,484.69
  6. Step 6: Final answer
    x = 45,555.40

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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.