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Finding the Fourth Proportional to 102,759.60, 154,369.80 and 99,994.80

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Solution

The fourth proportional to 102,759.60, 154,369.80 and 99,994.80 is: 150,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,759.60 : 154,369.80 = 99,994.80 : x
  2. Step 2: Convert to fraction form
    102,759.60/154,369.80 = 99,994.80/x
  3. Step 3: Cross multiply
    102,759.60x = 154,369.80 × 99,994.80
  4. Step 4: Simplify right side
    102,759.60x = 15,436,177,277.04
  5. Step 5: Solve for x
    x = 15,436,177,277.04/102,759.60
  6. Step 6: Final answer
    x = 150,216.40

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1.5x scale

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.