Home / 93,890.56-140,107.88-83,920

Finding the Fourth Proportional to 93,890.56, 140,107.88 and 83,920

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Solution

The fourth proportional to 93,890.56, 140,107.88 and 83,920 is: 125,229.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,890.56 : 140,107.88 = 83,920 : x
  2. Step 2: Convert to fraction form
    93,890.56/140,107.88 = 83,920/x
  3. Step 3: Cross multiply
    93,890.56x = 140,107.88 × 83,920
  4. Step 4: Simplify right side
    93,890.56x = 11,757,853,289.60
  5. Step 5: Solve for x
    x = 11,757,853,289.60/93,890.56
  6. Step 6: Final answer
    x = 125,229.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.