Home / 126,627.20-189,944-43,520.64

Finding the Fourth Proportional to 126,627.20, 189,944 and 43,520.64

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Solution

The fourth proportional to 126,627.20, 189,944 and 43,520.64 is: 65,282.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,627.20 : 189,944 = 43,520.64 : x
  2. Step 2: Convert to fraction form
    126,627.20/189,944 = 43,520.64/x
  3. Step 3: Cross multiply
    126,627.20x = 189,944 × 43,520.64
  4. Step 4: Simplify right side
    126,627.20x = 8,266,484,444.16
  5. Step 5: Solve for x
    x = 8,266,484,444.16/126,627.20
  6. Step 6: Final answer
    x = 65,282.06

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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.