Home / 99,863.28-149,786.70-29,742.60

Finding the Fourth Proportional to 99,863.28, 149,786.70 and 29,742.60

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Solution

The fourth proportional to 99,863.28, 149,786.70 and 29,742.60 is: 44,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,863.28 : 149,786.70 = 29,742.60 : x
  2. Step 2: Convert to fraction form
    99,863.28/149,786.70 = 29,742.60/x
  3. Step 3: Cross multiply
    99,863.28x = 149,786.70 × 29,742.60
  4. Step 4: Simplify right side
    99,863.28x = 4,455,045,903.42
  5. Step 5: Solve for x
    x = 4,455,045,903.42/99,863.28
  6. Step 6: Final answer
    x = 44,611.45

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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.