Home / 102,987.30-154,286.55-52,896.90

Finding the Fourth Proportional to 102,987.30, 154,286.55 and 52,896.90

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Solution

The fourth proportional to 102,987.30, 154,286.55 and 52,896.90 is: 79,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,987.30 : 154,286.55 = 52,896.90 : x
  2. Step 2: Convert to fraction form
    102,987.30/154,286.55 = 52,896.90/x
  3. Step 3: Cross multiply
    102,987.30x = 154,286.55 × 52,896.90
  4. Step 4: Simplify right side
    102,987.30x = 8,161,280,206.70
  5. Step 5: Solve for x
    x = 8,161,280,206.70/102,987.30
  6. Step 6: Final answer
    x = 79,245.50

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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.