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Finding the Fourth Proportional to 103,174.37, 154,805.30 and 56,372.57

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Solution

The fourth proportional to 103,174.37, 154,805.30 and 56,372.57 is: 84,582.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,174.37 : 154,805.30 = 56,372.57 : x
  2. Step 2: Convert to fraction form
    103,174.37/154,805.30 = 56,372.57/x
  3. Step 3: Cross multiply
    103,174.37x = 154,805.30 × 56,372.57
  4. Step 4: Simplify right side
    103,174.37x = 8,726,772,610.62
  5. Step 5: Solve for x
    x = 8,726,772,610.62/103,174.37
  6. Step 6: Final answer
    x = 84,582.76

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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.