Home / 146,909.25-220,426.23-80,271.54

Finding the Fourth Proportional to 146,909.25, 220,426.23 and 80,271.54

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Solution

The fourth proportional to 146,909.25, 220,426.23 and 80,271.54 is: 120,441.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,909.25 : 220,426.23 = 80,271.54 : x
  2. Step 2: Convert to fraction form
    146,909.25/220,426.23 = 80,271.54/x
  3. Step 3: Cross multiply
    146,909.25x = 220,426.23 × 80,271.54
  4. Step 4: Simplify right side
    146,909.25x = 17,693,952,938.49
  5. Step 5: Solve for x
    x = 17,693,952,938.49/146,909.25
  6. Step 6: Final answer
    x = 120,441.38

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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.