Home / 126,276.13-189,261.90-55,168.26

Finding the Fourth Proportional to 126,276.13, 189,261.90 and 55,168.26

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Solution

The fourth proportional to 126,276.13, 189,261.90 and 55,168.26 is: 82,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,276.13 : 189,261.90 = 55,168.26 : x
  2. Step 2: Convert to fraction form
    126,276.13/189,261.90 = 55,168.26/x
  3. Step 3: Cross multiply
    126,276.13x = 189,261.90 × 55,168.26
  4. Step 4: Simplify right side
    126,276.13x = 10,441,248,997.56
  5. Step 5: Solve for x
    x = 10,441,248,997.56/126,276.13
  6. Step 6: Final answer
    x = 82,685.85

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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.