Home / 275,295.12-412,983.76-97,787.20

Finding the Fourth Proportional to 275,295.12, 412,983.76 and 97,787.20

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Solution

The fourth proportional to 275,295.12, 412,983.76 and 97,787.20 is: 146,695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,295.12 : 412,983.76 = 97,787.20 : x
  2. Step 2: Convert to fraction form
    275,295.12/412,983.76 = 97,787.20/x
  3. Step 3: Cross multiply
    275,295.12x = 412,983.76 × 97,787.20
  4. Step 4: Simplify right side
    275,295.12x = 40,384,525,535.87
  5. Step 5: Solve for x
    x = 40,384,525,535.87/275,295.12
  6. Step 6: Final answer
    x = 146,695.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.