Home / 129,052.80-193,580.64-40,299.84

Finding the Fourth Proportional to 129,052.80, 193,580.64 and 40,299.84

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Solution

The fourth proportional to 129,052.80, 193,580.64 and 40,299.84 is: 60,450.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,052.80 : 193,580.64 = 40,299.84 : x
  2. Step 2: Convert to fraction form
    129,052.80/193,580.64 = 40,299.84/x
  3. Step 3: Cross multiply
    129,052.80x = 193,580.64 × 40,299.84
  4. Step 4: Simplify right side
    129,052.80x = 7,801,268,819.10
  5. Step 5: Solve for x
    x = 7,801,268,819.10/129,052.80
  6. Step 6: Final answer
    x = 60,450.21

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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.