Home / 146,572.20-220,004.10-71,776.80

Finding the Fourth Proportional to 146,572.20, 220,004.10 and 71,776.80

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Solution

The fourth proportional to 146,572.20, 220,004.10 and 71,776.80 is: 107,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,572.20 : 220,004.10 = 71,776.80 : x
  2. Step 2: Convert to fraction form
    146,572.20/220,004.10 = 71,776.80/x
  3. Step 3: Cross multiply
    146,572.20x = 220,004.10 × 71,776.80
  4. Step 4: Simplify right side
    146,572.20x = 15,791,190,284.88
  5. Step 5: Solve for x
    x = 15,791,190,284.88/146,572.20
  6. Step 6: Final answer
    x = 107,736.60

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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.