Home / 102,938.20-154,292.10-43,763.80

Finding the Fourth Proportional to 102,938.20, 154,292.10 and 43,763.80

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Solution

The fourth proportional to 102,938.20, 154,292.10 and 43,763.80 is: 65,596.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,938.20 : 154,292.10 = 43,763.80 : x
  2. Step 2: Convert to fraction form
    102,938.20/154,292.10 = 43,763.80/x
  3. Step 3: Cross multiply
    102,938.20x = 154,292.10 × 43,763.80
  4. Step 4: Simplify right side
    102,938.20x = 6,752,408,605.98
  5. Step 5: Solve for x
    x = 6,752,408,605.98/102,938.20
  6. Step 6: Final answer
    x = 65,596.72

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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.