Home / 148,217.25-204,539.81-81,149.25

Finding the Fourth Proportional to 148,217.25, 204,539.81 and 81,149.25

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Solution

The fourth proportional to 148,217.25, 204,539.81 and 81,149.25 is: 111,985.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,217.25 : 204,539.81 = 81,149.25 : x
  2. Step 2: Convert to fraction form
    148,217.25/204,539.81 = 81,149.25/x
  3. Step 3: Cross multiply
    148,217.25x = 204,539.81 × 81,149.25
  4. Step 4: Simplify right side
    148,217.25x = 16,598,251,770.90
  5. Step 5: Solve for x
    x = 16,598,251,770.90/148,217.25
  6. Step 6: Final answer
    x = 111,985.97

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1.5x scale

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.