Home / 126,052.40-189,078.60-112,274.30

Finding the Fourth Proportional to 126,052.40, 189,078.60 and 112,274.30

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Solution

The fourth proportional to 126,052.40, 189,078.60 and 112,274.30 is: 168,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,052.40 : 189,078.60 = 112,274.30 : x
  2. Step 2: Convert to fraction form
    126,052.40/189,078.60 = 112,274.30/x
  3. Step 3: Cross multiply
    126,052.40x = 189,078.60 × 112,274.30
  4. Step 4: Simplify right side
    126,052.40x = 21,228,667,459.98
  5. Step 5: Solve for x
    x = 21,228,667,459.98/126,052.40
  6. Step 6: Final answer
    x = 168,411.45

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1.5x scale

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.