Home / 452,951.12-679,429.20-137,408.36

Finding the Fourth Proportional to 452,951.12, 679,429.20 and 137,408.36

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Solution

The fourth proportional to 452,951.12, 679,429.20 and 137,408.36 is: 206,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,951.12 : 679,429.20 = 137,408.36 : x
  2. Step 2: Convert to fraction form
    452,951.12/679,429.20 = 137,408.36/x
  3. Step 3: Cross multiply
    452,951.12x = 679,429.20 × 137,408.36
  4. Step 4: Simplify right side
    452,951.12x = 93,359,252,108.11
  5. Step 5: Solve for x
    x = 93,359,252,108.11/452,951.12
  6. Step 6: Final answer
    x = 206,113.30

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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.