Home / 146,909.50-220,426.61-80,271.78

Finding the Fourth Proportional to 146,909.50, 220,426.61 and 80,271.78

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Solution

The fourth proportional to 146,909.50, 220,426.61 and 80,271.78 is: 120,441.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,909.50 : 220,426.61 = 80,271.78 : x
  2. Step 2: Convert to fraction form
    146,909.50/220,426.61 = 80,271.78/x
  3. Step 3: Cross multiply
    146,909.50x = 220,426.61 × 80,271.78
  4. Step 4: Simplify right side
    146,909.50x = 17,694,036,344.07
  5. Step 5: Solve for x
    x = 17,694,036,344.07/146,909.50
  6. Step 6: Final answer
    x = 120,441.74

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1.5x scale

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.