Home / 133,181.16-183,794.42-72,757.43

Finding the Fourth Proportional to 133,181.16, 183,794.42 and 72,757.43

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Solution

The fourth proportional to 133,181.16, 183,794.42 and 72,757.43 is: 100,407.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,181.16 : 183,794.42 = 72,757.43 : x
  2. Step 2: Convert to fraction form
    133,181.16/183,794.42 = 72,757.43/x
  3. Step 3: Cross multiply
    133,181.16x = 183,794.42 × 72,757.43
  4. Step 4: Simplify right side
    133,181.16x = 13,372,408,910.46
  5. Step 5: Solve for x
    x = 13,372,408,910.46/133,181.16
  6. Step 6: Final answer
    x = 100,407.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.