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Finding the Fourth Proportional to 103,752.63, 155,478.29 and 56,327.54

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Solution

The fourth proportional to 103,752.63, 155,478.29 and 56,327.54 is: 84,409.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,752.63 : 155,478.29 = 56,327.54 : x
  2. Step 2: Convert to fraction form
    103,752.63/155,478.29 = 56,327.54/x
  3. Step 3: Cross multiply
    103,752.63x = 155,478.29 × 56,327.54
  4. Step 4: Simplify right side
    103,752.63x = 8,757,708,540.08
  5. Step 5: Solve for x
    x = 8,757,708,540.08/103,752.63
  6. Step 6: Final answer
    x = 84,409.51

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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.