Home / 108,231.80-149,263.19-67,949.32

Finding the Fourth Proportional to 108,231.80, 149,263.19 and 67,949.32

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Solution

The fourth proportional to 108,231.80, 149,263.19 and 67,949.32 is: 93,709.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,231.80 : 149,263.19 = 67,949.32 : x
  2. Step 2: Convert to fraction form
    108,231.80/149,263.19 = 67,949.32/x
  3. Step 3: Cross multiply
    108,231.80x = 149,263.19 × 67,949.32
  4. Step 4: Simplify right side
    108,231.80x = 10,142,332,261.53
  5. Step 5: Solve for x
    x = 10,142,332,261.53/108,231.80
  6. Step 6: Final answer
    x = 93,709.36

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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.