Home / 148,787.88-205,363.04-85,162.60

Finding the Fourth Proportional to 148,787.88, 205,363.04 and 85,162.60

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Solution

The fourth proportional to 148,787.88, 205,363.04 and 85,162.60 is: 117,544.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,787.88 : 205,363.04 = 85,162.60 : x
  2. Step 2: Convert to fraction form
    148,787.88/205,363.04 = 85,162.60/x
  3. Step 3: Cross multiply
    148,787.88x = 205,363.04 × 85,162.60
  4. Step 4: Simplify right side
    148,787.88x = 17,489,250,430.30
  5. Step 5: Solve for x
    x = 17,489,250,430.30/148,787.88
  6. Step 6: Final answer
    x = 117,544.86

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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.