Home / 129,705.60-194,559.12-36,212.16

Finding the Fourth Proportional to 129,705.60, 194,559.12 and 36,212.16

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Solution

The fourth proportional to 129,705.60, 194,559.12 and 36,212.16 is: 54,318.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,705.60 : 194,559.12 = 36,212.16 : x
  2. Step 2: Convert to fraction form
    129,705.60/194,559.12 = 36,212.16/x
  3. Step 3: Cross multiply
    129,705.60x = 194,559.12 × 36,212.16
  4. Step 4: Simplify right side
    129,705.60x = 7,045,405,982.90
  5. Step 5: Solve for x
    x = 7,045,405,982.90/129,705.60
  6. Step 6: Final answer
    x = 54,318.44

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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.