Home / 272,825.15-409,047.30-120,939.89

Finding the Fourth Proportional to 272,825.15, 409,047.30 and 120,939.89

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Solution

The fourth proportional to 272,825.15, 409,047.30 and 120,939.89 is: 181,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,825.15 : 409,047.30 = 120,939.89 : x
  2. Step 2: Convert to fraction form
    272,825.15/409,047.30 = 120,939.89/x
  3. Step 3: Cross multiply
    272,825.15x = 409,047.30 × 120,939.89
  4. Step 4: Simplify right side
    272,825.15x = 49,470,133,421.56
  5. Step 5: Solve for x
    x = 49,470,133,421.56/272,825.15
  6. Step 6: Final answer
    x = 181,325.42

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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.