Home / 123,880.38-170,954.90-67,291.72

Finding the Fourth Proportional to 123,880.38, 170,954.90 and 67,291.72

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Solution

The fourth proportional to 123,880.38, 170,954.90 and 67,291.72 is: 92,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,880.38 : 170,954.90 = 67,291.72 : x
  2. Step 2: Convert to fraction form
    123,880.38/170,954.90 = 67,291.72/x
  3. Step 3: Cross multiply
    123,880.38x = 170,954.90 × 67,291.72
  4. Step 4: Simplify right side
    123,880.38x = 11,503,849,263.43
  5. Step 5: Solve for x
    x = 11,503,849,263.43/123,880.38
  6. Step 6: Final answer
    x = 92,862.56

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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.