Home / 115,911.46-159,961.75-64,926.38

Finding the Fourth Proportional to 115,911.46, 159,961.75 and 64,926.38

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Solution

The fourth proportional to 115,911.46, 159,961.75 and 64,926.38 is: 89,600.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,911.46 : 159,961.75 = 64,926.38 : x
  2. Step 2: Convert to fraction form
    115,911.46/159,961.75 = 64,926.38/x
  3. Step 3: Cross multiply
    115,911.46x = 159,961.75 × 64,926.38
  4. Step 4: Simplify right side
    115,911.46x = 10,385,737,365.97
  5. Step 5: Solve for x
    x = 10,385,737,365.97/115,911.46
  6. Step 6: Final answer
    x = 89,600.61

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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.