Home / 272,677.19-409,099.31-139,650.89

Finding the Fourth Proportional to 272,677.19, 409,099.31 and 139,650.89

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Solution

The fourth proportional to 272,677.19, 409,099.31 and 139,650.89 is: 209,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,677.19 : 409,099.31 = 139,650.89 : x
  2. Step 2: Convert to fraction form
    272,677.19/409,099.31 = 139,650.89/x
  3. Step 3: Cross multiply
    272,677.19x = 409,099.31 × 139,650.89
  4. Step 4: Simplify right side
    272,677.19x = 57,131,079,996.13
  5. Step 5: Solve for x
    x = 57,131,079,996.13/272,677.19
  6. Step 6: Final answer
    x = 209,519.11

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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.