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Finding the Fourth Proportional to 110,885.86, 166,326.40 and 30,921.70

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Solution

The fourth proportional to 110,885.86, 166,326.40 and 30,921.70 is: 46,381.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,885.86 : 166,326.40 = 30,921.70 : x
  2. Step 2: Convert to fraction form
    110,885.86/166,326.40 = 30,921.70/x
  3. Step 3: Cross multiply
    110,885.86x = 166,326.40 × 30,921.70
  4. Step 4: Simplify right side
    110,885.86x = 5,143,094,627.06
  5. Step 5: Solve for x
    x = 5,143,094,627.06/110,885.86
  6. Step 6: Final answer
    x = 46,381.88

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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.