Home / 126,496.40-189,623.10-73,133.60

Finding the Fourth Proportional to 126,496.40, 189,623.10 and 73,133.60

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Solution

The fourth proportional to 126,496.40, 189,623.10 and 73,133.60 is: 109,630.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,496.40 : 189,623.10 = 73,133.60 : x
  2. Step 2: Convert to fraction form
    126,496.40/189,623.10 = 73,133.60/x
  3. Step 3: Cross multiply
    126,496.40x = 189,623.10 × 73,133.60
  4. Step 4: Simplify right side
    126,496.40x = 13,867,819,946.16
  5. Step 5: Solve for x
    x = 13,867,819,946.16/126,496.40
  6. Step 6: Final answer
    x = 109,630.16

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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.