Home / 112,458.60-155,167.26-67,151.28

Finding the Fourth Proportional to 112,458.60, 155,167.26 and 67,151.28

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Solution

The fourth proportional to 112,458.60, 155,167.26 and 67,151.28 is: 92,653.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,458.60 : 155,167.26 = 67,151.28 : x
  2. Step 2: Convert to fraction form
    112,458.60/155,167.26 = 67,151.28/x
  3. Step 3: Cross multiply
    112,458.60x = 155,167.26 × 67,151.28
  4. Step 4: Simplify right side
    112,458.60x = 10,419,680,123.09
  5. Step 5: Solve for x
    x = 10,419,680,123.09/112,458.60
  6. Step 6: Final answer
    x = 92,653.48

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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.