Home / 108,503.10-149,634.36-74,451.51

Finding the Fourth Proportional to 108,503.10, 149,634.36 and 74,451.51

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Solution

The fourth proportional to 108,503.10, 149,634.36 and 74,451.51 is: 102,674.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,503.10 : 149,634.36 = 74,451.51 : x
  2. Step 2: Convert to fraction form
    108,503.10/149,634.36 = 74,451.51/x
  3. Step 3: Cross multiply
    108,503.10x = 149,634.36 × 74,451.51
  4. Step 4: Simplify right side
    108,503.10x = 11,140,504,049.88
  5. Step 5: Solve for x
    x = 11,140,504,049.88/108,503.10
  6. Step 6: Final answer
    x = 102,674.52

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1.5x scale

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.