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Finding the Fourth Proportional to 147,373.11, 203,374.85 and 80,305.11

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Solution

The fourth proportional to 147,373.11, 203,374.85 and 80,305.11 is: 110,821.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,373.11 : 203,374.85 = 80,305.11 : x
  2. Step 2: Convert to fraction form
    147,373.11/203,374.85 = 80,305.11/x
  3. Step 3: Cross multiply
    147,373.11x = 203,374.85 × 80,305.11
  4. Step 4: Simplify right side
    147,373.11x = 16,332,039,298.96
  5. Step 5: Solve for x
    x = 16,332,039,298.96/147,373.11
  6. Step 6: Final answer
    x = 110,821.03

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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.