Home / 108,329.43-149,532.19-74,450.07

Finding the Fourth Proportional to 108,329.43, 149,532.19 and 74,450.07

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Solution

The fourth proportional to 108,329.43, 149,532.19 and 74,450.07 is: 102,766.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,329.43 : 149,532.19 = 74,450.07 : x
  2. Step 2: Convert to fraction form
    108,329.43/149,532.19 = 74,450.07/x
  3. Step 3: Cross multiply
    108,329.43x = 149,532.19 × 74,450.07
  4. Step 4: Simplify right side
    108,329.43x = 11,132,681,826.63
  5. Step 5: Solve for x
    x = 11,132,681,826.63/108,329.43
  6. Step 6: Final answer
    x = 102,766.92

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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.