Home / 121,629.18-167,848.20-67,914.17

Finding the Fourth Proportional to 121,629.18, 167,848.20 and 67,914.17

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Solution

The fourth proportional to 121,629.18, 167,848.20 and 67,914.17 is: 93,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,629.18 : 167,848.20 = 67,914.17 : x
  2. Step 2: Convert to fraction form
    121,629.18/167,848.20 = 67,914.17/x
  3. Step 3: Cross multiply
    121,629.18x = 167,848.20 × 67,914.17
  4. Step 4: Simplify right side
    121,629.18x = 11,399,270,349.75
  5. Step 5: Solve for x
    x = 11,399,270,349.75/121,629.18
  6. Step 6: Final answer
    x = 93,721.51

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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.