Home / 133,317.20-199,902.90-54,342.20

Finding the Fourth Proportional to 133,317.20, 199,902.90 and 54,342.20

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Solution

The fourth proportional to 133,317.20, 199,902.90 and 54,342.20 is: 81,483.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,317.20 : 199,902.90 = 54,342.20 : x
  2. Step 2: Convert to fraction form
    133,317.20/199,902.90 = 54,342.20/x
  3. Step 3: Cross multiply
    133,317.20x = 199,902.90 × 54,342.20
  4. Step 4: Simplify right side
    133,317.20x = 10,863,163,372.38
  5. Step 5: Solve for x
    x = 10,863,163,372.38/133,317.20
  6. Step 6: Final answer
    x = 81,483.58

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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.