Home / 126,258.96-189,208-92,715.88

Finding the Fourth Proportional to 126,258.96, 189,208 and 92,715.88

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Solution

The fourth proportional to 126,258.96, 189,208 and 92,715.88 is: 138,941.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,258.96 : 189,208 = 92,715.88 : x
  2. Step 2: Convert to fraction form
    126,258.96/189,208 = 92,715.88/x
  3. Step 3: Cross multiply
    126,258.96x = 189,208 × 92,715.88
  4. Step 4: Simplify right side
    126,258.96x = 17,542,586,223.04
  5. Step 5: Solve for x
    x = 17,542,586,223.04/126,258.96
  6. Step 6: Final answer
    x = 138,941.32

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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.