Home / 126,312.97-189,528.54-55,226.40

Finding the Fourth Proportional to 126,312.97, 189,528.54 and 55,226.40

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Solution

The fourth proportional to 126,312.97, 189,528.54 and 55,226.40 is: 82,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,312.97 : 189,528.54 = 55,226.40 : x
  2. Step 2: Convert to fraction form
    126,312.97/189,528.54 = 55,226.40/x
  3. Step 3: Cross multiply
    126,312.97x = 189,528.54 × 55,226.40
  4. Step 4: Simplify right side
    126,312.97x = 10,466,978,961.46
  5. Step 5: Solve for x
    x = 10,466,978,961.46/126,312.97
  6. Step 6: Final answer
    x = 82,865.43

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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.