Home / 135,829.42-187,435.22-75,395.31

Finding the Fourth Proportional to 135,829.42, 187,435.22 and 75,395.31

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Solution

The fourth proportional to 135,829.42, 187,435.22 and 75,395.31 is: 104,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,829.42 : 187,435.22 = 75,395.31 : x
  2. Step 2: Convert to fraction form
    135,829.42/187,435.22 = 75,395.31/x
  3. Step 3: Cross multiply
    135,829.42x = 187,435.22 × 75,395.31
  4. Step 4: Simplify right side
    135,829.42x = 14,131,736,073.11
  5. Step 5: Solve for x
    x = 14,131,736,073.11/135,829.42
  6. Step 6: Final answer
    x = 104,040.32

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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.