Home / 121,537.19-167,721.33-67,089.38

Finding the Fourth Proportional to 121,537.19, 167,721.33 and 67,089.38

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Solution

The fourth proportional to 121,537.19, 167,721.33 and 67,089.38 is: 92,583.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,537.19 : 167,721.33 = 67,089.38 : x
  2. Step 2: Convert to fraction form
    121,537.19/167,721.33 = 67,089.38/x
  3. Step 3: Cross multiply
    121,537.19x = 167,721.33 × 67,089.38
  4. Step 4: Simplify right side
    121,537.19x = 11,252,319,203.87
  5. Step 5: Solve for x
    x = 11,252,319,203.87/121,537.19
  6. Step 6: Final answer
    x = 92,583.34

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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.