Home / 135,648.64-187,185.99-75,217.06

Finding the Fourth Proportional to 135,648.64, 187,185.99 and 75,217.06

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Solution

The fourth proportional to 135,648.64, 187,185.99 and 75,217.06 is: 103,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,648.64 : 187,185.99 = 75,217.06 : x
  2. Step 2: Convert to fraction form
    135,648.64/187,185.99 = 75,217.06/x
  3. Step 3: Cross multiply
    135,648.64x = 187,185.99 × 75,217.06
  4. Step 4: Simplify right side
    135,648.64x = 14,079,579,840.99
  5. Step 5: Solve for x
    x = 14,079,579,840.99/135,648.64
  6. Step 6: Final answer
    x = 103,794.48

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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.