Home / 133,102.56-199,701.36-57,169.20

Finding the Fourth Proportional to 133,102.56, 199,701.36 and 57,169.20

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Solution

The fourth proportional to 133,102.56, 199,701.36 and 57,169.20 is: 85,774.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,102.56 : 199,701.36 = 57,169.20 : x
  2. Step 2: Convert to fraction form
    133,102.56/199,701.36 = 57,169.20/x
  3. Step 3: Cross multiply
    133,102.56x = 199,701.36 × 57,169.20
  4. Step 4: Simplify right side
    133,102.56x = 11,416,766,990.11
  5. Step 5: Solve for x
    x = 11,416,766,990.11/133,102.56
  6. Step 6: Final answer
    x = 85,774.21

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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.