Home / 108,912.39-150,281.46-68,071.70

Finding the Fourth Proportional to 108,912.39, 150,281.46 and 68,071.70

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Solution

The fourth proportional to 108,912.39, 150,281.46 and 68,071.70 is: 93,927.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,912.39 : 150,281.46 = 68,071.70 : x
  2. Step 2: Convert to fraction form
    108,912.39/150,281.46 = 68,071.70/x
  3. Step 3: Cross multiply
    108,912.39x = 150,281.46 × 68,071.70
  4. Step 4: Simplify right side
    108,912.39x = 10,229,914,836.39
  5. Step 5: Solve for x
    x = 10,229,914,836.39/108,912.39
  6. Step 6: Final answer
    x = 93,927.93

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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.