Home / 135,646.89-187,183.58-75,215.31

Finding the Fourth Proportional to 135,646.89, 187,183.58 and 75,215.31

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Solution

The fourth proportional to 135,646.89, 187,183.58 and 75,215.31 is: 103,792.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,646.89 : 187,183.58 = 75,215.31 : x
  2. Step 2: Convert to fraction form
    135,646.89/187,183.58 = 75,215.31/x
  3. Step 3: Cross multiply
    135,646.89x = 187,183.58 × 75,215.31
  4. Step 4: Simplify right side
    135,646.89x = 14,079,070,620.53
  5. Step 5: Solve for x
    x = 14,079,070,620.53/135,646.89
  6. Step 6: Final answer
    x = 103,792.06

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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.