Home / 167,644.81-231,435.51-129,318.32

Finding the Fourth Proportional to 167,644.81, 231,435.51 and 129,318.32

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Solution

The fourth proportional to 167,644.81, 231,435.51 and 129,318.32 is: 178,525.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,644.81 : 231,435.51 = 129,318.32 : x
  2. Step 2: Convert to fraction form
    167,644.81/231,435.51 = 129,318.32/x
  3. Step 3: Cross multiply
    167,644.81x = 231,435.51 × 129,318.32
  4. Step 4: Simplify right side
    167,644.81x = 29,928,850,184.37
  5. Step 5: Solve for x
    x = 29,928,850,184.37/167,644.81
  6. Step 6: Final answer
    x = 178,525.36

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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.