Home / 126,564.40-189,725.10-73,201.60

Finding the Fourth Proportional to 126,564.40, 189,725.10 and 73,201.60

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Solution

The fourth proportional to 126,564.40, 189,725.10 and 73,201.60 is: 109,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,564.40 : 189,725.10 = 73,201.60 : x
  2. Step 2: Convert to fraction form
    126,564.40/189,725.10 = 73,201.60/x
  3. Step 3: Cross multiply
    126,564.40x = 189,725.10 × 73,201.60
  4. Step 4: Simplify right side
    126,564.40x = 13,888,180,880.16
  5. Step 5: Solve for x
    x = 13,888,180,880.16/126,564.40
  6. Step 6: Final answer
    x = 109,732.13

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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.