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Finding the Fourth Proportional to 111,523.15, 154,028.84 and 75,650.89

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Solution

The fourth proportional to 111,523.15, 154,028.84 and 75,650.89 is: 104,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,523.15 : 154,028.84 = 75,650.89 : x
  2. Step 2: Convert to fraction form
    111,523.15/154,028.84 = 75,650.89/x
  3. Step 3: Cross multiply
    111,523.15x = 154,028.84 × 75,650.89
  4. Step 4: Simplify right side
    111,523.15x = 11,652,418,349.48
  5. Step 5: Solve for x
    x = 11,652,418,349.48/111,523.15
  6. Step 6: Final answer
    x = 104,484.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.