Home / 452,175.12-678,381.24-136,640.40

Finding the Fourth Proportional to 452,175.12, 678,381.24 and 136,640.40

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Solution

The fourth proportional to 452,175.12, 678,381.24 and 136,640.40 is: 204,996.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,175.12 : 678,381.24 = 136,640.40 : x
  2. Step 2: Convert to fraction form
    452,175.12/678,381.24 = 136,640.40/x
  3. Step 3: Cross multiply
    452,175.12x = 678,381.24 × 136,640.40
  4. Step 4: Simplify right side
    452,175.12x = 92,694,283,986.10
  5. Step 5: Solve for x
    x = 92,694,283,986.10/452,175.12
  6. Step 6: Final answer
    x = 204,996.43

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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.