Home / 106,128.67-146,453.97-58,381.60

Finding the Fourth Proportional to 106,128.67, 146,453.97 and 58,381.60

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Solution

The fourth proportional to 106,128.67, 146,453.97 and 58,381.60 is: 80,564.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,128.67 : 146,453.97 = 58,381.60 : x
  2. Step 2: Convert to fraction form
    106,128.67/146,453.97 = 58,381.60/x
  3. Step 3: Cross multiply
    106,128.67x = 146,453.97 × 58,381.60
  4. Step 4: Simplify right side
    106,128.67x = 8,550,217,094.95
  5. Step 5: Solve for x
    x = 8,550,217,094.95/106,128.67
  6. Step 6: Final answer
    x = 80,564.63

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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.