Home / 121,231.83-167,293.58-67,515.87

Finding the Fourth Proportional to 121,231.83, 167,293.58 and 67,515.87

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Solution

The fourth proportional to 121,231.83, 167,293.58 and 67,515.87 is: 93,168.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,231.83 : 167,293.58 = 67,515.87 : x
  2. Step 2: Convert to fraction form
    121,231.83/167,293.58 = 67,515.87/x
  3. Step 3: Cross multiply
    121,231.83x = 167,293.58 × 67,515.87
  4. Step 4: Simplify right side
    121,231.83x = 11,294,971,261.54
  5. Step 5: Solve for x
    x = 11,294,971,261.54/121,231.83
  6. Step 6: Final answer
    x = 93,168.36

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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.