Home / 121,513.44-167,688-67,795.26

Finding the Fourth Proportional to 121,513.44, 167,688 and 67,795.26

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Solution

The fourth proportional to 121,513.44, 167,688 and 67,795.26 is: 93,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,513.44 : 167,688 = 67,795.26 : x
  2. Step 2: Convert to fraction form
    121,513.44/167,688 = 67,795.26/x
  3. Step 3: Cross multiply
    121,513.44x = 167,688 × 67,795.26
  4. Step 4: Simplify right side
    121,513.44x = 11,368,451,558.88
  5. Step 5: Solve for x
    x = 11,368,451,558.88/121,513.44
  6. Step 6: Final answer
    x = 93,557.15

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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.