Home / 126,363.20-189,826.40-105,627.20

Finding the Fourth Proportional to 126,363.20, 189,826.40 and 105,627.20

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Solution

The fourth proportional to 126,363.20, 189,826.40 and 105,627.20 is: 158,676.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,363.20 : 189,826.40 = 105,627.20 : x
  2. Step 2: Convert to fraction form
    126,363.20/189,826.40 = 105,627.20/x
  3. Step 3: Cross multiply
    126,363.20x = 189,826.40 × 105,627.20
  4. Step 4: Simplify right side
    126,363.20x = 20,050,831,118.08
  5. Step 5: Solve for x
    x = 20,050,831,118.08/126,363.20
  6. Step 6: Final answer
    x = 158,676.19

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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.