Home / 133,720.90-184,507.57-79,249.07

Finding the Fourth Proportional to 133,720.90, 184,507.57 and 79,249.07

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Solution

The fourth proportional to 133,720.90, 184,507.57 and 79,249.07 is: 109,347.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,720.90 : 184,507.57 = 79,249.07 : x
  2. Step 2: Convert to fraction form
    133,720.90/184,507.57 = 79,249.07/x
  3. Step 3: Cross multiply
    133,720.90x = 184,507.57 × 79,249.07
  4. Step 4: Simplify right side
    133,720.90x = 14,622,053,330.46
  5. Step 5: Solve for x
    x = 14,622,053,330.46/133,720.90
  6. Step 6: Final answer
    x = 109,347.55

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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.