Home / 121,383.56-167,507.39-67,671.86

Finding the Fourth Proportional to 121,383.56, 167,507.39 and 67,671.86

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Solution

The fourth proportional to 121,383.56, 167,507.39 and 67,671.86 is: 93,386.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,383.56 : 167,507.39 = 67,671.86 : x
  2. Step 2: Convert to fraction form
    121,383.56/167,507.39 = 67,671.86/x
  3. Step 3: Cross multiply
    121,383.56x = 167,507.39 × 67,671.86
  4. Step 4: Simplify right side
    121,383.56x = 11,335,535,976.69
  5. Step 5: Solve for x
    x = 11,335,535,976.69/121,383.56
  6. Step 6: Final answer
    x = 93,386.09

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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.