Home / 102,690.27-154,034.46-55,327.68

Finding the Fourth Proportional to 102,690.27, 154,034.46 and 55,327.68

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Solution

The fourth proportional to 102,690.27, 154,034.46 and 55,327.68 is: 82,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,690.27 : 154,034.46 = 55,327.68 : x
  2. Step 2: Convert to fraction form
    102,690.27/154,034.46 = 55,327.68/x
  3. Step 3: Cross multiply
    102,690.27x = 154,034.46 × 55,327.68
  4. Step 4: Simplify right side
    102,690.27x = 8,522,369,311.85
  5. Step 5: Solve for x
    x = 8,522,369,311.85/102,690.27
  6. Step 6: Final answer
    x = 82,991.01

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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.