Home / 146,724.63-220,086.95-80,128.43

Finding the Fourth Proportional to 146,724.63, 220,086.95 and 80,128.43

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Solution

The fourth proportional to 146,724.63, 220,086.95 and 80,128.43 is: 120,192.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,724.63 : 220,086.95 = 80,128.43 : x
  2. Step 2: Convert to fraction form
    146,724.63/220,086.95 = 80,128.43/x
  3. Step 3: Cross multiply
    146,724.63x = 220,086.95 × 80,128.43
  4. Step 4: Simplify right side
    146,724.63x = 17,635,220,265.91
  5. Step 5: Solve for x
    x = 17,635,220,265.91/146,724.63
  6. Step 6: Final answer
    x = 120,192.64

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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.