Home / 102,962.20-154,328.10-43,787.80

Finding the Fourth Proportional to 102,962.20, 154,328.10 and 43,787.80

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Solution

The fourth proportional to 102,962.20, 154,328.10 and 43,787.80 is: 65,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,962.20 : 154,328.10 = 43,787.80 : x
  2. Step 2: Convert to fraction form
    102,962.20/154,328.10 = 43,787.80/x
  3. Step 3: Cross multiply
    102,962.20x = 154,328.10 × 43,787.80
  4. Step 4: Simplify right side
    102,962.20x = 6,757,687,977.18
  5. Step 5: Solve for x
    x = 6,757,687,977.18/102,962.20
  6. Step 6: Final answer
    x = 65,632.71

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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.