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Finding the Fourth Proportional to 100,853.96, 151,361.58 and 45,454.28

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Solution

The fourth proportional to 100,853.96, 151,361.58 and 45,454.28 is: 68,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,853.96 : 151,361.58 = 45,454.28 : x
  2. Step 2: Convert to fraction form
    100,853.96/151,361.58 = 45,454.28/x
  3. Step 3: Cross multiply
    100,853.96x = 151,361.58 × 45,454.28
  4. Step 4: Simplify right side
    100,853.96x = 6,880,031,638.56
  5. Step 5: Solve for x
    x = 6,880,031,638.56/100,853.96
  6. Step 6: Final answer
    x = 68,217.76

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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.