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Finding the Fourth Proportional to 104,723.59, 155,900.84 and 104,100.80

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Solution

The fourth proportional to 104,723.59, 155,900.84 and 104,100.80 is: 154,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,723.59 : 155,900.84 = 104,100.80 : x
  2. Step 2: Convert to fraction form
    104,723.59/155,900.84 = 104,100.80/x
  3. Step 3: Cross multiply
    104,723.59x = 155,900.84 × 104,100.80
  4. Step 4: Simplify right side
    104,723.59x = 16,229,401,644.17
  5. Step 5: Solve for x
    x = 16,229,401,644.17/104,723.59
  6. Step 6: Final answer
    x = 154,973.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.