Home / 126,495.40-189,621.60-73,132.60

Finding the Fourth Proportional to 126,495.40, 189,621.60 and 73,132.60

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Solution

The fourth proportional to 126,495.40, 189,621.60 and 73,132.60 is: 109,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,495.40 : 189,621.60 = 73,132.60 : x
  2. Step 2: Convert to fraction form
    126,495.40/189,621.60 = 73,132.60/x
  3. Step 3: Cross multiply
    126,495.40x = 189,621.60 × 73,132.60
  4. Step 4: Simplify right side
    126,495.40x = 13,867,520,624.16
  5. Step 5: Solve for x
    x = 13,867,520,624.16/126,495.40
  6. Step 6: Final answer
    x = 109,628.66

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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.