Home / 124,917.89-172,408.46-120,765.92

Finding the Fourth Proportional to 124,917.89, 172,408.46 and 120,765.92

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Solution

The fourth proportional to 124,917.89, 172,408.46 and 120,765.92 is: 166,678.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,917.89 : 172,408.46 = 120,765.92 : x
  2. Step 2: Convert to fraction form
    124,917.89/172,408.46 = 120,765.92/x
  3. Step 3: Cross multiply
    124,917.89x = 172,408.46 × 120,765.92
  4. Step 4: Simplify right side
    124,917.89x = 20,821,064,821.81
  5. Step 5: Solve for x
    x = 20,821,064,821.81/124,917.89
  6. Step 6: Final answer
    x = 166,678.01

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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.