Home / 135,576.51-187,106.78-75,166.10

Finding the Fourth Proportional to 135,576.51, 187,106.78 and 75,166.10

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Solution

The fourth proportional to 135,576.51, 187,106.78 and 75,166.10 is: 103,735.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,576.51 : 187,106.78 = 75,166.10 : x
  2. Step 2: Convert to fraction form
    135,576.51/187,106.78 = 75,166.10/x
  3. Step 3: Cross multiply
    135,576.51x = 187,106.78 × 75,166.10
  4. Step 4: Simplify right side
    135,576.51x = 14,064,086,936.16
  5. Step 5: Solve for x
    x = 14,064,086,936.16/135,576.51
  6. Step 6: Final answer
    x = 103,735.43

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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.