Home / 149,709.89-206,634.38-98,731.82

Finding the Fourth Proportional to 149,709.89, 206,634.38 and 98,731.82

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Solution

The fourth proportional to 149,709.89, 206,634.38 and 98,731.82 is: 136,272.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,709.89 : 206,634.38 = 98,731.82 : x
  2. Step 2: Convert to fraction form
    149,709.89/206,634.38 = 98,731.82/x
  3. Step 3: Cross multiply
    149,709.89x = 206,634.38 × 98,731.82
  4. Step 4: Simplify right side
    149,709.89x = 20,401,386,885.14
  5. Step 5: Solve for x
    x = 20,401,386,885.14/149,709.89
  6. Step 6: Final answer
    x = 136,272.81

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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.