Home / 129,828.32-194,742.48-103,699.15

Finding the Fourth Proportional to 129,828.32, 194,742.48 and 103,699.15

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Solution

The fourth proportional to 129,828.32, 194,742.48 and 103,699.15 is: 155,548.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,828.32 : 194,742.48 = 103,699.15 : x
  2. Step 2: Convert to fraction form
    129,828.32/194,742.48 = 103,699.15/x
  3. Step 3: Cross multiply
    129,828.32x = 194,742.48 × 103,699.15
  4. Step 4: Simplify right side
    129,828.32x = 20,194,629,644.89
  5. Step 5: Solve for x
    x = 20,194,629,644.89/129,828.32
  6. Step 6: Final answer
    x = 155,548.73

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Similar ratio
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1.5x scale

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.