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Finding the Fourth Proportional to 134,652.11, 185,811.43 and 74,219.41

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Solution

The fourth proportional to 134,652.11, 185,811.43 and 74,219.41 is: 102,418.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,652.11 : 185,811.43 = 74,219.41 : x
  2. Step 2: Convert to fraction form
    134,652.11/185,811.43 = 74,219.41/x
  3. Step 3: Cross multiply
    134,652.11x = 185,811.43 × 74,219.41
  4. Step 4: Simplify right side
    134,652.11x = 13,790,814,334.76
  5. Step 5: Solve for x
    x = 13,790,814,334.76/134,652.11
  6. Step 6: Final answer
    x = 102,418.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.