Home / 129,410.56-194,115.78-35,916.28

Finding the Fourth Proportional to 129,410.56, 194,115.78 and 35,916.28

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Solution

The fourth proportional to 129,410.56, 194,115.78 and 35,916.28 is: 53,874.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,410.56 : 194,115.78 = 35,916.28 : x
  2. Step 2: Convert to fraction form
    129,410.56/194,115.78 = 35,916.28/x
  3. Step 3: Cross multiply
    129,410.56x = 194,115.78 × 35,916.28
  4. Step 4: Simplify right side
    129,410.56x = 6,971,916,706.90
  5. Step 5: Solve for x
    x = 6,971,916,706.90/129,410.56
  6. Step 6: Final answer
    x = 53,874.40

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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.