Home / 102,983.40-154,604.70-55,636.20

Finding the Fourth Proportional to 102,983.40, 154,604.70 and 55,636.20

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Solution

The fourth proportional to 102,983.40, 154,604.70 and 55,636.20 is: 83,524.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,983.40 : 154,604.70 = 55,636.20 : x
  2. Step 2: Convert to fraction form
    102,983.40/154,604.70 = 55,636.20/x
  3. Step 3: Cross multiply
    102,983.40x = 154,604.70 × 55,636.20
  4. Step 4: Simplify right side
    102,983.40x = 8,601,618,010.14
  5. Step 5: Solve for x
    x = 8,601,618,010.14/102,983.40
  6. Step 6: Final answer
    x = 83,524.32

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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.