Home / 452,745.72-679,043.25-137,127.60

Finding the Fourth Proportional to 452,745.72, 679,043.25 and 137,127.60

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Solution

The fourth proportional to 452,745.72, 679,043.25 and 137,127.60 is: 205,668.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,745.72 : 679,043.25 = 137,127.60 : x
  2. Step 2: Convert to fraction form
    452,745.72/679,043.25 = 137,127.60/x
  3. Step 3: Cross multiply
    452,745.72x = 679,043.25 × 137,127.60
  4. Step 4: Simplify right side
    452,745.72x = 93,115,571,168.70
  5. Step 5: Solve for x
    x = 93,115,571,168.70/452,745.72
  6. Step 6: Final answer
    x = 205,668.58

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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.