Home / 121,431.48-167,575.80-66,982.33

Finding the Fourth Proportional to 121,431.48, 167,575.80 and 66,982.33

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Solution

The fourth proportional to 121,431.48, 167,575.80 and 66,982.33 is: 92,435.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,431.48 : 167,575.80 = 66,982.33 : x
  2. Step 2: Convert to fraction form
    121,431.48/167,575.80 = 66,982.33/x
  3. Step 3: Cross multiply
    121,431.48x = 167,575.80 × 66,982.33
  4. Step 4: Simplify right side
    121,431.48x = 11,224,617,535.61
  5. Step 5: Solve for x
    x = 11,224,617,535.61/121,431.48
  6. Step 6: Final answer
    x = 92,435.81

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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.