Home / 121,537.45-167,721.68-67,089.63

Finding the Fourth Proportional to 121,537.45, 167,721.68 and 67,089.63

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Solution

The fourth proportional to 121,537.45, 167,721.68 and 67,089.63 is: 92,583.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,537.45 : 167,721.68 = 67,089.63 : x
  2. Step 2: Convert to fraction form
    121,537.45/167,721.68 = 67,089.63/x
  3. Step 3: Cross multiply
    121,537.45x = 167,721.68 × 67,089.63
  4. Step 4: Simplify right side
    121,537.45x = 11,252,384,280.12
  5. Step 5: Solve for x
    x = 11,252,384,280.12/121,537.45
  6. Step 6: Final answer
    x = 92,583.68

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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.