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Finding the Fourth Proportional to 103,015.68, 154,546.68 and 55,629.72

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Solution

The fourth proportional to 103,015.68, 154,546.68 and 55,629.72 is: 83,457.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,015.68 : 154,546.68 = 55,629.72 : x
  2. Step 2: Convert to fraction form
    103,015.68/154,546.68 = 55,629.72/x
  3. Step 3: Cross multiply
    103,015.68x = 154,546.68 × 55,629.72
  4. Step 4: Simplify right side
    103,015.68x = 8,597,388,535.33
  5. Step 5: Solve for x
    x = 8,597,388,535.33/103,015.68
  6. Step 6: Final answer
    x = 83,457.09

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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.