Home / 133,381.20-184,090.68-85,694.16

Finding the Fourth Proportional to 133,381.20, 184,090.68 and 85,694.16

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Solution

The fourth proportional to 133,381.20, 184,090.68 and 85,694.16 is: 118,273.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,381.20 : 184,090.68 = 85,694.16 : x
  2. Step 2: Convert to fraction form
    133,381.20/184,090.68 = 85,694.16/x
  3. Step 3: Cross multiply
    133,381.20x = 184,090.68 × 85,694.16
  4. Step 4: Simplify right side
    133,381.20x = 15,775,496,186.43
  5. Step 5: Solve for x
    x = 15,775,496,186.43/133,381.20
  6. Step 6: Final answer
    x = 118,273.76

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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.