Home / 147,612.96-220,276.84-131,861.28

Finding the Fourth Proportional to 147,612.96, 220,276.84 and 131,861.28

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Solution

The fourth proportional to 147,612.96, 220,276.84 and 131,861.28 is: 196,771.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,612.96 : 220,276.84 = 131,861.28 : x
  2. Step 2: Convert to fraction form
    147,612.96/220,276.84 = 131,861.28/x
  3. Step 3: Cross multiply
    147,612.96x = 220,276.84 × 131,861.28
  4. Step 4: Simplify right side
    147,612.96x = 29,045,986,076.76
  5. Step 5: Solve for x
    x = 29,045,986,076.76/147,612.96
  6. Step 6: Final answer
    x = 196,771.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.